Task: Schema-Matching (source dataset: HXD)

Task: 
Please identify the matching columns between Table A and Table B. For each column in Table A, specify the corresponding column in Table B. If a column in A has no corresponding column in Table B, you can map it to null. Represent each column mapping using a pair of column headers in a list, i.e., [Table A Column, Table B column or null]. Provide the mapping for each column in Table A and return all mappings in a list.

No explanation and return the matching columns in a structured JSON format: {"column_mappings": <a list of column pairs>}.

TableA:
| Reported_Date   | Country   | Country_Code   | Round   | State of Displacement   | State Pcode   | LGA        | LGA Pcode   | Ward              | CODs PCODE   |   Estimated Household Number |   Estimated Number of IDP |   Year | state_orig   | lga_orig   | reason_insurgency_YesNo   | reason_insurg_hh   | reason_insurg_ind   | reason_clash_YesNo   | reason_clash_hh   | reason_clash_ind   | reason_disaster_YesNo   | reason_disaster_hh   | reason_disaster_ind   | reason_others_YesNo   | reason_others_hh   | reason_others_ind   |
|:----------------|:----------|:---------------|:--------|:------------------------|:--------------|:-----------|:------------|:------------------|:-------------|-----------------------------:|--------------------------:|-------:|:-------------|:-----------|:--------------------------|:-------------------|:--------------------|:---------------------|:------------------|:-------------------|:------------------------|:---------------------|:----------------------|:----------------------|:-------------------|:--------------------|
| Oct-31-2021     | Nigeria   | NGA            | R39     | BORNO                   | NG008         | CHIBOK     | NG008006    | CHIBOK GARU       | NG008006001  |                          577 |                      2891 |   2015 | BORNO        | DAMBOA     | Yes                       | 577                | 2891                | No                   |                   |                    | No                      |                      |                       | No                    |                    |                     |
| Oct-31-2021     | Nigeria   | NGA            | R39     | ADAMAWA                 | NG002         | GOMBI      | NG002004    | GOMBI SOUTH       | NG002005007  |                          147 |                       806 |   2016 | BORNO        | GWOZA      | Yes                       | 147                | 806                 | No                   |                   |                    | No                      |                      |                       | No                    |                    |                     |
| Oct-31-2021     | Nigeria   | NGA            | R39     | BAUCHI                  | NG005         | JAMA'ARE   | NG005011    | DOGON JEJI "A"    | NG005011001  |                           18 |                       125 |   2014 | BORNO        | KUKAWA     | Yes                       | 18                 | 125                 | No                   |                   |                    | No                      |                      |                       | No                    |                    |                     |
| Oct-31-2021     | Nigeria   | NGA            | R39     | BORNO                   | NG008         | JERE       | NG008013    | GOMARI            | NG008013005  |                          989 |                      4713 |   2015 | BORNO        | BAMA       | Yes                       | 989                | 4713                | No                   |                   |                    | No                      |                      |                       | No                    |                    |                     |
| Oct-31-2021     | Nigeria   | NGA            | R39     | TARABA                  | NG035         | JALINGO    | NG035007    | TURAKI 'B'        | NG035007010  |                           97 |                       485 |   2014 | TARABA       | JALINGO    | Yes                       | 36                 | 180                 | Yes                  | 61                | 305                | No                      |                      |                       | No                    |                    |                     |
| Oct-31-2021     | Nigeria   | NGA            | R39     | ADAMAWA                 | NG002         | LAMURDE    | NG002009    | RIGANGE           | NG002009008  |                           24 |                       144 |   2017 | ADAMAWA      | NUMAN      | No                        |                    |                     | Yes                  | 24                | 144                | No                      |                      |                       | No                    |                    |                     |
| Oct-31-2021     | Nigeria   | NGA            | R39     | ADAMAWA                 | NG002         | YOLA NORTH | NG002020    | KARENA            | NG002020006  |                          531 |                      1933 |   2014 | BORNO        | GWOZA      | Yes                       | 517                | 1862                | No                   |                   |                    | Yes                     | 14                   | 71                    | No                    |                    |                     |
| Oct-31-2021     | Nigeria   | NGA            | R39     | YOBE                    | NG036         | TARMUWA    | NG036015    | BIRIRI/CHUROKUSKO | NG036015003  |                            7 |                        38 |   2021 | YOBE         | TARMUWA    | Yes                       | 7                  | 38                  | No                   |                   |                    | No                      |                      |                       | No                    |                    |                     |
| Oct-31-2021     | Nigeria   | NGA            | R39     | BAUCHI                  | NG005         | DAMBAM     | NG005004    | GARGAWA           | NG005004003  |                           48 |                       140 |   2014 | YOBE         | GUJBA      | Yes                       | 48                 | 140                 | No                   |                   |                    | No                      |                      |                       | No                    |                    |                     |
| Oct-31-2021     | Nigeria   | NGA            | R39     | BORNO                   | NG008         | BIU        | NG008005    | GARUBULA          | NG008005004  |                           26 |                       216 |   2016 | BORNO        | DAMBOA     | Yes                       | 26                 | 216                 | No                   |                   |                    | No                      |                      |                       | No                    |                    |                     |

TableB:
| Snapshot Date       |   DTM Round | Country   | Country Code   | State_Pcode   | State   | LGA Pcode   | LGA        | Ward Pcode   | Ward            | SiteID   | Site Name       |   Longitude |   Latitude | Site Type        | Site Classification   | Site Management Agency   | SMA Type   | Registration Activity   | WASH Support   | HEALTH Support   | SHELTER-NFI Support   | FOOD Support   | PROTECTION Support   | EDUCATION Support   | LIVELIHOOD Support   | Land Ownership   | Most Common Type of Shelter   |   Number of Households |   Number of Individuals |   Boys (<1) |   Girls (<1) |   Boys (1 - 5 y) |   Girls (1 - 5 y) |   Boys (6 - 17 y) |   Girls (6 - 17 y) |   Men (18 - 59 y) |   Women (18 - 59 y) |   (Elderly men 60+ y) |   (Elderly women 60+ y) | Have IDPs been displaced previously   | Reason for displacement of Majority   | Natural Hazard Risks   | Intended Area of Return   | Reasons to Return Home   | Reasons NOT to Return Home                 | % HH living outside (no shelter)   | % HH living in EmS   | % HH living in makeshift/self-made shelter   | % HH living indoors (solid walls)   | % HH have access to electricity   | % HH have access to safe cooking facilities   | % HH have private living area   | % HH have mosquito nets   | Most needed NFI   | Location of site main water source   | Main drinking water source   | Avg amount of water available /day/person   | Is drinking water potable   | Complaints about drinking water quality   | Condition of most of the toilets   |   # of functioning toilets | Main garbage disposal    | Garbage and solid waste problem   | Availability of hand-washing station   | Hygiene promotion campaign   | Evidence of open defecation   | Access to food   | Access to market near from the site   | Frequency of food distribution   | Most common source for obtaining food   | Screening for malnutrition   | Most health problem   | Regular access to medicine   | Access to health facility   | Location of health facilities   | Main provider of health facilities   | Access to education services   | Location of education facilities   | % of children attending school   | Occupation of majority of IDPs   |   # of HH with source of income | Access to income generating activities   | Livestock on site   | IDPs have access to land for cultivation   | Most trusted source of Info   | Main topic community is requesting info   | Serious problem due to lack information   |
|:--------------------|------------:|:----------|:---------------|:--------------|:--------|:------------|:-----------|:-------------|:----------------|:---------|:----------------|------------:|-----------:|:-----------------|:----------------------|:-------------------------|:-----------|:------------------------|:---------------|:-----------------|:----------------------|:---------------|:---------------------|:--------------------|:---------------------|:-----------------|:------------------------------|-----------------------:|------------------------:|------------:|-------------:|-----------------:|------------------:|------------------:|-------------------:|------------------:|--------------------:|----------------------:|------------------------:|:--------------------------------------|:--------------------------------------|:-----------------------|:--------------------------|:-------------------------|:-------------------------------------------|:-----------------------------------|:---------------------|:---------------------------------------------|:------------------------------------|:----------------------------------|:----------------------------------------------|:--------------------------------|:--------------------------|:------------------|:-------------------------------------|:-----------------------------|:--------------------------------------------|:----------------------------|:------------------------------------------|:-----------------------------------|---------------------------:|:-------------------------|:----------------------------------|:---------------------------------------|:-----------------------------|:------------------------------|:-----------------|:--------------------------------------|:---------------------------------|:----------------------------------------|:-----------------------------|:----------------------|:-----------------------------|:----------------------------|:--------------------------------|:-------------------------------------|:-------------------------------|:-----------------------------------|:---------------------------------|:---------------------------------|--------------------------------:|:-----------------------------------------|:--------------------|:-------------------------------------------|:------------------------------|:------------------------------------------|:------------------------------------------|
| 2021-01-28 00:00:00 |          34 | Nigeria   | NG             | NG002         | ADAMAWA | NG002021    | YOLA SOUTH | NG002021008  | NAMTARI         | AD_H498  | KASUWAN KATAKO  |     12.3901 |    9.27388 | Host Communities | Host Communities      | no                       | None       | yes                     | yes            | yes              | yes                   | no             | no                   | yes                 | no                   | Private Building | individual house              |                    104 |                     814 |          16 |           18 |               30 |                38 |                74 |                 89 |               224 |                 303 |                    10 |                      12 | yes                                   | insurgency                            | none                   | none stay here            | No Reason                | no access to initial place of displacement | None                               | none                 | None                                         | >75%                                | <25%                              | <25%                                          | 25%_50%                         | <25%                      | Blankets/Mats     | on-site (<10 minutes)                | piped water supply           | >15ltr                                      | yes                         | No                                        | not so good (not hygienic)         |                         15 | burning                  | no                                | None                                   | no                           | no                            | yes, onsite      | yes                                   | irregular                        | cultivated                              | no                           | malaria               | yes                          | yes                         | off-site (> 3 km)               | government                           | no                             | none                               | <25%                             | daily_labourer                   |                              10 | yes                                      | yes                 | yes                                        | local leader/community leader | situation in areas of origin              | no                                        |
| 2021-01-28 00:00:00 |          34 | Nigeria   | NG             | NG005         | BAUCHI  | NG005020    | ZAKI       | NG005020011  | TASHENA / GADAI | BA_H408  | GARIN GAMI      |     10.2312 |   12.3169  | Host Communities | Host Communities      | no                       | None       | yes                     | yes            | yes              | yes                   | yes            | yes                  | yes                 | yes                  | Private Building | Host family house             |                     20 |                     101 |           2 |            2 |                8 |                 7 |                19 |                 19 |                18 |                  20 |                     4 |                       2 | no                                    | insurgency                            | flood                  | place of origin           | improved security        | No Reason                                  | None                               | none                 | None                                         | >75%                                | None                              | 51%_75%                                       | 51%_75%                         | 25%_50%                   | mattress          | on-site (<10 minutes)                | hand pumps                   | 10-15ltr                                    | yes                         | No                                        | not so good (not hygienic)         |                         17 | burning                  | no                                | None                                   | yes                          | no                            | yes, onsite      | yes                                   | irregular                        | cash (personal money)                   | no                           | malaria               | no                           | yes                         | on-site (< 3 km)                | local clinic                         | yes                            | on-site                            | 51% - 75%                        | farming                          |                              15 | yes                                      | yes                 | yes                                        | religious leader              | safety and security                       | yes                                       |
| 2021-01-28 00:00:00 |          34 | Nigeria   | NG             | NG008         | BORNO   | NG008023    | MOBBAR     | NG008023004  | DAMASAK         | BO_H355  | KAIRI           |     12.5126 |   13.1047  | Host Communities | Host Communities      | no                       | None       | no                      | yes            | yes              | no                    | yes            | no                   | yes                 | yes                  | Private Building | Host family house             |                    331 |                    1513 |          43 |           52 |              126 |               156 |               217 |                267 |               268 |                 325 |                    26 |                      33 | no                                    | insurgency                            | none                   | place of origin           | improved security        | No Reason                                  | None                               | none                 | <25%                                         | >75%                                | 51%_75%                           | 25%_50%                                       | <25%                            | <25%                      | kitchen sets      | on-site (<10 minutes)                | piped water supply           | 10-15ltr                                    | yes                         | No                                        | not so good (not hygienic)         |                          0 | burning                  | no                                | None                                   | no                           | yes                           | yes, onsite      | yes                                   | once a month                     | cash (personal money)                   | no                           | malaria               | yes                          | yes                         | on-site (< 3 km)                | ngo                                  | yes                            | on-site                            | 25% -50%                         | daily_labourer                   |                             291 | yes                                      | yes                 | no                                         | friends, neighbors and family | safety and security                       | yes                                       |
| 2021-01-28 00:00:00 |          34 | Nigeria   | NG             | NG002         | ADAMAWA | NG002009    | LAMURDE    | NG002009003  | LAFIYA          | AD_H187  | LAFIYA          |     11.8202 |    9.65062 | Host Communities | Host Communities      | no                       | None       | yes                     | no             | no               | no                    | no             | yes                  | no                  | no                   | Private Building | rented house                  |                    420 |                    2520 |          23 |           26 |              137 |               145 |               605 |                617 |               432 |                 435 |                    50 |                      50 | no                                    | communal clashes                      | none                   | place of origin           | rebuild personal shelter | No Reason                                  | None                               | none                 | None                                         | >75%                                | >75%                              | 25%_50%                                       | 25%_50%                         | <25%                      | Blankets/Mats     | on-site (<10 minutes)                | hand pumps                   | 5-10ltr                                     | yes                         | No                                        | not so good (not hygienic)         |                        350 | burning                  | yes                               | None                                   | no                           | no                            | no               | yes                                   | never                            | cultivated                              | no                           | malaria               | no                           | yes                         | on-site (< 3 km)                | government                           | yes                            | on-site                            | 51% - 75%                        | farming                          |                              16 | yes                                      | yes                 | yes                                        | local leader/community leader | situation in areas of origin              | no                                        |
| 2021-01-28 00:00:00 |          34 | Nigeria   | NG             | NG016         | GOMBE   | NG016004    | DUKKU      | NG016004003  | JAMARI          | GM_H052  | KATAPILA        |     10.949  |   11.0196  | Host Communities | Host Communities      | no                       | None       | yes                     | no             | no               | no                    | yes            | yes                  | no                  | yes                  | Private Building | Self-made/makeshift shelter   |                     14 |                      70 |           2 |            3 |                3 |                 4 |                13 |                 17 |                11 |                  14 |                     1 |                       2 | yes                                   | insurgency                            | flood                  | none stay here            | No Reason                | house damaged                              | None                               | none                 | >75%                                         | None                                | None                              | <25%                                          | None                            | <25%                      | Blankets/Mats     | on-site (>10 minutes)                | unprotected well             | 10-15ltr                                    | no                          | yes                                       | not so good (not hygienic)         |                          1 | garbage pit              | yes                               | None                                   | no                           | no                            | yes, onsite      | yes                                   | irregular                        | cultivated                              | no                           | malaria               | yes                          | yes                         | off-site (< 3 km)               | government                           | yes                            | off-site                           | <25%                             | petty_trade                      |                               4 | yes                                      | no                  | no                                         | friends, neighbors and family | access to services                        | no                                        |
| 2021-01-28 00:00:00 |          34 | Nigeria   | NG             | NG036         | YOBE    | NG036006    | GEIDAM     | NG036006001  | ASHEIKRI        | YB_H122  | AJARI           |     11.9302 |   12.8994  | Host Communities | Host Communities      | no                       | None       | yes                     | no             | yes              | no                    | yes            | no                   | no                  | yes                  | Private Building | Host family house             |                     61 |                     397 |          10 |           16 |               14 |                22 |                78 |                116 |                49 |                  75 |                     6 |                      11 | yes                                   | insurgency                            | none                   | place of origin           | rebuild personal shelter | No Reason                                  | None                               | none                 | <25%                                         | >75%                                | <25%                              | <25%                                          | None                            | <25%                      | mosquito nets     | on-site (<10 minutes)                | piped water supply           | 10-15ltr                                    | yes                         | No                                        | not so good (not hygienic)         |                          0 | no waste disposal system | yes                               | None                                   | yes                          | yes                           | yes, onsite      | yes                                   | once a month                     | distribution                            | yes                          | malaria               | no                           | yes                         | on-site (< 3 km)                | government                           | yes                            | off-site                           | <25%                             | farming                          |                             317 | yes                                      | yes                 | yes                                        | traditional leader            | distribution                              | no                                        |
| 2021-01-28 00:00:00 |          34 | Nigeria   | NG             | NG002         | ADAMAWA | NG002020    | YOLA NORTH | NG002020006  | KARENA          | AD_H408  | KAREWA PRY SCH  |     12.4443 |    9.24776 | Host Communities | Host Communities      | no                       | None       | yes                     | yes            | no               | no                    | no             | no                   | no                  | yes                  | Private Building | Host family house             |                    150 |                     502 |           2 |            4 |               63 |                82 |                70 |                 96 |                83 |                  98 |                     3 |                       1 | no                                    | insurgency                            | none                   | place of origin           | improved security        | No Reason                                  | None                               | none                 | None                                         | >75%                                | 25%_50%                           | 25%_50%                                       | None                            | <25%                      | mattress          | on-site (<10 minutes)                | piped water supply           | 10-15ltr                                    | yes                         | No                                        | not so good (not hygienic)         |                        126 | burning                  | no                                | None                                   | no                           | no                            | yes, onsite      | yes                                   | never                            | cash (personal money)                   | no                           | malaria               | no                           | yes                         | off-site (< 3 km)               | government                           | yes                            | off-site                           | 51% - 75%                        | farming                          |                               1 | yes                                      | yes                 | no                                         | friends, neighbors and family | access to services                        | no                                        |
| 2021-01-28 00:00:00 |          34 | Nigeria   | NG             | NG035         | TARABA  | NG035016    | ZING       | NG035016010  | ZING B          | TR_H216  | ANGUWAN MISSION |     11.7437 |    8.99444 | Host Communities | Host Communities      | no                       | None       | no                      | no             | no               | no                    | no             | no                   | no                  | no                   | Private Building | Host family house             |                      7 |                      29 |           1 |            1 |                2 |                 2 |                 5 |                  6 |                 3 |                   7 |                     1 |                       1 | no                                    | insurgency                            | none                   | place of origin           | to join family members   | No Reason                                  | None                               | none                 | None                                         | 25%_50%                             | 25%_50%                           | 25%_50%                                       | >75%                            | >75%                      | Blankets/Mats     | off-site (<10 minutes)               | hand pumps                   | 10-15ltr                                    | yes                         | No                                        | not so good (not hygienic)         |                          5 | burning                  | yes                               | None                                   | no                           | no                            | no               | no                                    | never                            | cultivated                              | no                           | malaria               | yes                          | yes                         | off-site (< 3 km)               | local clinic                         | yes                            | off-site                           | 51% - 75%                        | farming                          |                               4 | yes                                      | yes                 | yes                                        | religious leader              | distribution                              | no                                        |
| 2021-01-28 00:00:00 |          34 | Nigeria   | NG             | NG005         | BAUCHI  | NG005012    | KATAGUM    | NG005012006  | MADANGALA       | BA_H169  | MATSANGO        |     10.1931 |   11.6016  | Host Communities | Host Communities      | no                       | None       | yes                     | yes            | yes              | yes                   | yes            | yes                  | yes                 | yes                  | Private Building | Host family house             |                    162 |                     734 |          20 |           26 |               48 |                26 |               180 |                169 |               122 |                 129 |                     8 |                       6 | no                                    | insurgency                            | none                   | place of origin           | improved security        | No Reason                                  | None                               | none                 | None                                         | >75%                                | 51%_75%                           | 25%_50%                                       | >75%                            | 25%_50%                   | mosquito nets     | on-site (<10 minutes)                | piped water supply           | 10-15ltr                                    | yes                         | No                                        | not so good (not hygienic)         |                        133 | burning                  | no                                | yes                                    | yes                          | no                            | yes, onsite      | yes                                   | everyday                         | cash (personal money)                   | no                           | malaria               | yes                          | yes                         | on-site (< 3 km)                | government                           | yes                            | on-site                            | 51% - 75%                        | farming                          |                              26 | yes                                      | yes                 | yes                                        | friends, neighbors and family | distribution                              | no                                        |
| 2021-01-28 00:00:00 |          34 | Nigeria   | NG             | NG008         | BORNO   | NG008004    | BAYO       | NG008004010  | ZARA            | BO_H460  | BANBARKAR       |     11.8093 |   10.6686  | Host Communities | Host Communities      | no                       | None       | yes                     | no             | yes              | no                    | no             | yes                  | yes                 | no                   | Private Building | rented house                  |                     30 |                     206 |           5 |            6 |               23 |                22 |                39 |                 34 |                33 |                  42 |                     2 |                       0 | no                                    | insurgency                            | none                   | place of origin           | rebuild personal shelter | No Reason                                  | None                               | none                 | None                                         | >75%                                | None                              | 25%_50%                                       | >75%                            | <25%                      | Blankets/Mats     | on-site (<10 minutes)                | protected well               | >15ltr                                      | yes                         | No                                        | not so good (not hygienic)         |                         15 | no waste disposal system | yes                               | None                                   | no                           | no                            | no               | yes                                   | never                            | cultivated                              | no                           | malaria               | yes                          | yes                         | off-site (< 3 km)               | government                           | yes                            | on-site                            | 51% - 75%                        | daily_labourer                   |                              28 | yes                                      | yes                 | no                                         | friends, neighbors and family | access to services                        | no                                        |



source_headers: Reported_Date
Country
Country_Code
Round
State Pcode
LGA
LGA Pcode
Ward
CODs PCODE
Estimated Household Number
Estimated Number of IDP
State of Displacement
target_headers: Snapshot Date
Country
Country Code
DTM Round
State_Pcode
LGA
LGA Pcode
Ward
Ward Pcode
Number of Households
Number of Individuals
State
column_mappings: Reported_Date
Snapshot Date
Country
Country
Country_Code
Country Code
Round
DTM Round
State Pcode
State_Pcode
LGA
LGA
LGA Pcode
LGA Pcode
Ward
Ward
CODs PCODE
Ward Pcode
Estimated Household Number
Number of Households
Estimated Number of IDP
Number of Individuals
State of Displacement
State
output: {"column_mappings": [["Reported_Date", "Snapshot Date"], ["Country", "Country"], ["Country_Code", "Country Code"], ["Round", "DTM Round"], ["State of Displacement", "State"], ["State Pcode", "State_Pcode"], ["LGA", "LGA"], ["LGA Pcode", "LGA Pcode"], ["Ward", "Ward"], ["CODs PCODE", "Ward Pcode"], ["Estimated Household Number", "Number of Households"], ["Estimated Number of IDP", "Number of Individuals"], ["Year", null], ["state_orig", null], ["lga_orig", null], ["reason_insurgency_YesNo", null], ["reason_insurg_hh", null], ["reason_insurg_ind", null], ["reason_clash_YesNo", null], ["reason_clash_hh", null], ["reason_clash_ind", null], ["reason_disaster_YesNo", null], ["reason_disaster_hh", null], ["reason_disaster_ind", null], ["reason_others_YesNo", null], ["reason_others_hh", null], ["reason_others_ind", null]]}