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:
| Country   | Country_Code   | Reported_Date   | Date of Assessment   | State Code   | State    | LGA Code   | LGA             |   Number households |   Number individuals |
|:----------|:---------------|:----------------|:---------------------|:-------------|:---------|:-----------|:----------------|--------------------:|---------------------:|
| Nigeria   | NGA            | Jan-31-2022     | 2021-11-30 00:00:00  | NGA036       | Yobe     | NGA036003  | Damaturu        |                  79 |                  474 |
| Nigeria   | NGA            | Jan-31-2022     | 2021-10-05 00:00:00  | NGA036       | Yobe     | NGA036017  | Yusufari        |                  35 |                  152 |
| Nigeria   | NGA            | Jan-31-2022     | 2021-11-24 00:00:00  | NGA036       | Yobe     | NGA036005  | Fune            |                  22 |                  121 |
| Nigeria   | NGA            | Jan-31-2022     | 2021-11-26 00:00:00  | NGA008       | Borno    | NGA008013  | Jere            |                 346 |                 2014 |
| Nigeria   | NGA            | Jan-31-2022     | 2022-01-05 00:00:00  | NGA008       | Borno    | NGA008008  | Dikwa           |                 542 |                 2926 |
| Nigeria   | NGA            | Jan-31-2022     | 2021-09-22 00:00:00  | NGA035       | Taraba   | NGA035014  | Wukari          |                  82 |                  495 |
| Nigeria   | NGA            | Jan-31-2022     | 2021-09-19 00:00:00  | NGA035       | Taraba   | NGA035014  | Wukari          |                 113 |                  564 |
| Nigeria   | NGA            | Jan-31-2022     | 2021-12-03 00:00:00  | NGA002       | Adamawa  | NGA002009  | Lamurde         |                  25 |                  150 |
| Nigeria   | NGA            | Jan-31-2022     | 2021-11-25 00:00:00  | NGA016       | Gombe    | NGA016001  | Akko            |                  57 |                  351 |
| Nigeria   | NGA            | Jan-31-2022     | 2021-12-08 00:00:00  | NGA008       | Borno    | NGA008021  | Maiduguri M. C. |                  31 |                  172 |

TableB:
| Snapshot date       | Country   | Country Code   | DTM Round   | State   | State_Pcode   | LGA             | LGA Pcode   | Ward                        | CODs_Ward_Pcode   | SiteID   | Site Name                      |   Longitude |   Latitude | Site Status   | Site Type                    | Site Classification   | Site Area    | Site Management Agency   | SMA Type   | Registration Activity   | WASH Support   | CCCM Support   | CCCM_Organization   | HEALTH Support   | SHELTER Support   | NFI Support    | FOOD Support   | PROTECTION Support   | EDUCATION Support   | LIVELIHOOD Support   | PSS SUPPORT   | PSS_ORGANIZATION    | 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   |
|:--------------------|:----------|:---------------|:------------|:--------|:--------------|:----------------|:------------|:----------------------------|:------------------|:---------|:-------------------------------|------------:|-----------:|:--------------|:-----------------------------|:----------------------|:-------------|:-------------------------|:-----------|:------------------------|:---------------|:---------------|:--------------------|:-----------------|:------------------|:---------------|:---------------|:---------------------|:--------------------|:---------------------|:--------------|:--------------------|:------------------|:------------------------------|-----------------------:|------------------------:|------------:|-------------:|-----------------:|------------------:|------------------:|-------------------:|------------------:|--------------------:|----------------------:|------------------------:|:--------------------------------------|:--------------------------------------|:-----------------------|:--------------------------|:--------------------------|:-----------------------------|:-----------------------------------|:---------------------|:---------------------------------------------|:------------------------------------|:----------------------------------|:----------------------------------------------|:--------------------------------|:--------------------------|:------------------|:-------------------------------------|:-----------------------------|:--------------------------------------------|:----------------------------|:------------------------------------------|:-----------------------------------|---------------------------:|:------------------------|:----------------------------------|:---------------------------------------|:-----------------------------|:------------------------------|:-----------------|:--------------------------------------|:---------------------------------|:----------------------------------------|:-----------------------------|:----------------------|:-----------------------------|:----------------------------|:--------------------------------|:-------------------------------------|:-------------------------------|:-----------------------------------|:---------------------------------|:---------------------------------|--------------------------------:|:-----------------------------------------|:--------------------|:-------------------------------------------|:------------------------------|:------------------------------------------|:------------------------------------------|
| 2020-11-21 00:00:00 | Nigeria   | NG             | R35         | BORNO   | NG008         | MAIDUGURI M. C. | NG008021    | MAISANDARI                  | NG008021013       | BO_S353  | Sulumri Bulamari Camp          |     13.1196 |   11.8024  | Informal      | Camp                         | Spontaneous           | 16,487 sq.m  | no                       | None       | yes                     | no             | no             | none                | no               | no                | no             | no             | yes                  | no                  | no                   | no            | No PSS ORGANIZATION | Private Building  | Self-made/makeshift shelter   |                     11 |                      65 |           2 |            2 |                4 |                 5 |                 9 |                 13 |                12 |                  15 |                     1 |                       2 | no                                    | insurgency                            | none                   | place of origin           | improved security         | I want to go back            | None                               | None                 | 51%_75%                                      | 25%_50%                             | None                              | 25%_50%                                       | 25%_50%                         | 51%_75%                   | mosquito nets     | on-site (<10 minutes)                | piped water supply           | >15ltr                                      | yes                         | no                                        | not so good (not hygienic)         |                          2 | burning                 | yes                               | none                                   | yes                          | no                            | no               | yes                                   | never                            | cash (personal money)                   | yes                          | malaria               | yes                          | yes                         | off-site (< 3 km)               | ingo                                 | yes                            | off-site                           | <25%                             | daily labourer                   |                               9 | yes                                      | yes                 | no                                         | friends, neighbors and family | distribution                              | no                                        |
| 2020-11-21 00:00:00 | Nigeria   | NG             | R35         | BORNO   | NG008         | MAIDUGURI M. C. | NG008021    | MAISANDARI                  | NG008021013       | BO_S102  | Kaduwa I                       |     13.1317 |   11.7911  | informal      | Camp                         | Spontaneous           | 14,879 sq.m  | no                       | None       | yes                     | no             | no             | none                | yes              | no                | no             | yes            | yes                  | no                  | no                   | no            | No PSS ORGANIZATION | Private Building  | Self-made/makeshift shelter   |                     56 |                     288 |           9 |           10 |               20 |                25 |                48 |                 61 |                47 |                  57 |                     8 |                       3 | no                                    | insurgency                            | none                   | place of origin           | access to land            | I want to go back            | None                               | None                 | None                                         | None                                | <25%                              | <25%                                          | <25%                            | <25%                      | mosquito nets     | off-site (>10 minutes)               | piped water supply           | 10-15ltr                                    | yes                         | no                                        | not so good (not hygienic)         |                          8 | burning                 | yes                               | none                                   | yes                          | no                            | yes_offsite      | yes                                   | once a month                     | distribution                            | yes                          | cough                 | yes                          | yes                         | on-site (< 3 km)                | ingo                                 | yes                            | on-site                            | <25%                             | petty trade                      |                              15 | yes                                      | yes                 | no                                         | local leader/community leader | distribution                              | no                                        |
| 2020-11-21 00:00:00 | Nigeria   | NG             | R35         | BORNO   | NG008         | JERE            | NG008013    | DUSUMAN                     | NG008013004       | BO_S047  | Muna El Badawy                 |     13.2505 |   11.8732  | formal        | Collective Settlement/Centre | Spontaneous           | 22,129 sq.m  | yes                      | government | yes                     | yes            | yes            | iom                 | yes              | yes               | yes            | yes            | yes                  | yes                 | yes                  | yes           | iom                 | Public Government | Self-made/makeshift shelter   |                   7453 |                   40407 |         908 |         1113 |             3635 |              4452 |              5429 |               7412 |              7441 |                8803 |                   542 |                     672 | no                                    | insurgency                            | flood                  | place of origin           | improved security         | I want to go back            | none                               | <25%                 | 51%_75%                                      | none                                | none                              | 25%_50%                                       | 25%_50%                         | 25%_50%                   | Blankets/Mats     | on-site (<10 minutes)                | piped water supply           | >15ltr                                      | yes                         | no                                        | good (hygienic)                    |                        431 | burning                 | yes                               | yes but no soap/water inside           | yes                          | yes                           | yes_onsite       | yes                                   | once a month                     | cash (personal money)                   | yes                          | malaria               | yes                          | yes                         | on-site (< 3 km)                | ingo                                 | yes                            | on-site                            | 25%_50%                          | petty trade                      |                            5812 | yes                                      | yes                 | no                                         | friends, neighbors and family | access to services                        | no                                        |
| 2020-11-21 00:00:00 | Nigeria   | NG             | R35         | BORNO   | NG008         | MAIDUGURI M. C. | NG008021    | BOLORI  I                   | NG008021001       | BO_S042  | Federal Low Cost Chezcoan Camp |     13.1168 |   11.8662  | informal      | Collective Settlement/Centre | Spontaneous           | 6,688 sq.m   | yes                      | ingo       | yes                     | yes            | yes            | shi                 | yes              | yes               | yes            | yes            | yes                  | no                  | no                   | no            | No PSS ORGANIZATION | Private Building  | school building               |                    159 |                     788 |          18 |           21 |               78 |                86 |               109 |                133 |               140 |                 172 |                    14 |                      17 | yes                                   | insurgency                            | none                   | place of origin           | improved security         | I want to go back            | <25%                               | <25%                 | <25%                                         | 51%_75%                             | None                              | 51%_75%                                       | 51%_75%                         | <25%                      | Blankets/Mats     | on-site (<10 minutes)                | piped water supply           | 10-15ltr                                    | yes                         | no                                        | not so good (not hygienic)         |                         16 | burning                 | yes                               | yes but no soap/water inside           | yes                          | no                            | yes_onsite       | yes                                   | irregular                        | cash (personal money)                   | yes                          | malaria               | yes                          | yes                         | on-site (< 3 km)                | government                           | yes                            | on-site                            | 51%_75%                          | daily labourer                   |                              46 | yes                                      | yes                 | no                                         | local leader/community leader | distribution                              | no                                        |
| 2020-11-21 00:00:00 | Nigeria   | NG             | R35         | BORNO   | NG008         | DIKWA           | NG008008    | DIKWA                       | NG008008002       | BO_S216  | Shehu Musta Ii                 |     13.9237 |   12.0476  | informal      | Camp                         | Spontaneous           | 51,523 sq.m  | yes                      | ingo       | yes                     | yes            | yes            | acted               | yes              | yes               | yes            | no             | yes                  | yes                 | no                   | yes           | iom                 | Public Government | emergency shelter             |                    462 |                    2497 |          83 |           67 |              256 |               218 |               360 |                439 |               438 |                 536 |                    45 |                      55 | no                                    | insurgency                            | none                   | place of origin           | improved security         | I want to go back            | None                               | >75%                 | None                                         | None                                | None                              | <25%                                          | 25%_50%                         | 51%_75%                   | Blankets/Mats     | on-site (<10 minutes)                | piped water supply           | >15ltr                                      | yes                         | no                                        | not so good (not hygienic)         |                        127 | burning                 | yes                               | none                                   | yes                          | no                            | yes_offsite      | yes                                   | once a month                     | distribution                            | yes                          | cough                 | yes                          | yes                         | off-site (< 3 km)               | ingo                                 | yes                            | on-site                            | <25%                             | farming                          |                             309 | yes                                      | yes                 | yes                                        | friends, neighbors and family | safety and security                       | no                                        |
| 2020-11-21 00:00:00 | Nigeria   | NG             | R35         | YOBE    | NG036         | FUNE            | NG036005    | DOGON KUKA/GISHIWARI/GUNUNU | NG036005006       | YB_S022  | Funai                          |     11.5387 |   11.6718  | informal      | Camp                         | Spontaneous           | 147,598 sq.m | no                       | None       | yes                     | no             | no             | none                | no               | yes               | yes            | yes            | yes                  | no                  | no                   | no            | No PSS ORGANIZATION | Public Government | Self-made/makeshift shelter   |                     61 |                     388 |           4 |            3 |               37 |                37 |                92 |                 95 |                53 |                  60 |                     4 |                       3 | yes                                   | insurgency                            | flood                  | nearest village           | access to better services | I want to go back            | none                               | <25%                 | >75%                                         | none                                | none                              | <25%                                          | 25%_50%                         | 51%_75%                   | Blankets/Mats     | on-site (>10 minutes)                | protected well               | 10-15ltr                                    | yes                         | no                                        | non usable                         |                         22 | burning                 | no                                | none                                   | yes                          | no                            | yes_onsite       | yes                                   | irregular                        | cultivated                              | yes                          | malaria               | yes                          | yes                         | on-site (> 3 km)                | government                           | yes                            | off-site                           | 25%_50%                          | agro-pastoralism                 |                              14 | yes                                      | yes                 | yes                                        | friends, neighbors and family | how to contact aid providers              | no                                        |
| 2020-11-21 00:00:00 | Nigeria   | NG             | R35         | BORNO   | NG008         | MAIDUGURI M. C. | NG008021    | LAMISULA/JABBA MARI         | NG008021010       | BO_S284  | Marte Camp                     |     13.1549 |   11.859   | informal      | Camp                         | Spontaneous           | 27,373 sq.m  | no                       | None       | yes                     | no             | no             | none                | no               | no                | no             | no             | yes                  | no                  | no                   | no            | No PSS ORGANIZATION | Private Building  | Host family house             |                     11 |                      55 |           1 |            2 |                3 |                 4 |                 7 |                 12 |                10 |                  14 |                     1 |                       1 | no                                    | insurgency                            | none                   | place of origin           | improved security         | I want to go back            | none                               | none                 | none                                         | >75%                                | none                              | 51%_75%                                       | 51%_75%                         | <25%                      | Blankets/Mats     | on-site (<10 minutes)                | piped water supply           | >15ltr                                      | yes                         | no                                        | not so good (not hygienic)         |                          0 | burning                 | no                                | none                                   | no                           | no                            | no               | yes                                   | never                            | cash (personal money)                   | yes                          | malaria               | yes                          | yes                         | off-site (< 3 km)               | government                           | yes                            | off-site                           | 51%_75%                          | daily labourer                   |                               7 | yes                                      | no                  | no                                         | local leader/community leader | access to services                        | no                                        |
| 2020-11-21 00:00:00 | Nigeria   | NG             | R35         | BORNO   | NG008         | CHIBOK          | NG008006    | CHIBOK GARU                 | NG008006001       | BO_S167  | Red-Bricks (Idp) Camp          |     12.8596 |   10.8781  | informal      | Camp                         | Spontaneous           | 22,881 sq.m  | no                       | None       | yes                     | yes            | no             | none                | yes              | yes               | yes            | yes            | yes                  | yes                 | yes                  | yes           | iom                 | Public Government | government building           |                     40 |                     231 |           7 |            6 |               17 |                23 |                41 |                 34 |                47 |                  52 |                     2 |                       2 | yes                                   | insurgency                            | storm                  | place of origin           | improved security         | I want to go back            | none                               | none                 | none                                         | >75%                                | none                              | 25%_50%                                       | <25%                            | >75%                      | soap              | on-site (<10 minutes)                | piped water supply           | 10-15ltr                                    | yes                         | no                                        | not so good (not hygienic)         |                         20 | burning                 | yes                               | yes but no soap/water inside           | yes                          | no                            | yes_offsite      | yes                                   | irregular                        | cultivated                              | yes                          | malaria               | yes                          | yes                         | off-site (> 3 km)               | government                           | yes                            | off-site                           | >75%                             | farming                          |                              32 | yes                                      | yes                 | yes                                        | friends, neighbors and family | access to services                        | no                                        |
| 2020-11-21 00:00:00 | Nigeria   | NG             | R35         | BORNO   | NG008         | MAIDUGURI M. C. | NG008021    | BOLORI  I                   | NG008021001       | BO_S024  | Garba Buzu Qrt                 |     13.1107 |   11.8505  | informal      | Collective Settlement/Centre | Spontaneous           | 81,972 sq.m  | yes                      | ingo       | yes                     | yes            | yes            | nrc                 | no               | yes               | yes            | yes            | yes                  | no                  | yes                  | no            | No PSS ORGANIZATION | Private Building  | individual house              |                    326 |                    2258 |          53 |           65 |              203 |               248 |               314 |                384 |               405 |                 496 |                    40 |                      50 | no                                    | insurgency                            | none                   | place of origin           | improved security         | I want to go back            | None                               | <25%                 | <25%                                         | >75%                                | 25%_50%                           | 25%_50%                                       | 51%_75%                         | 51%_75%                   | kitchen sets      | on-site (<10 minutes)                | piped water supply           | >15ltr                                      | yes                         | no                                        | not so good (not hygienic)         |                         45 | burning                 | yes                               | yes                                    | yes                          | no                            | yes_onsite       | yes                                   | once a month                     | distribution                            | yes                          | malaria               | yes                          | yes                         | off-site (< 3 km)               | ingo                                 | yes                            | off-site                           | 25%_50%                          | daily labourer                   |                             287 | yes                                      | yes                 | no                                         | local leader/community leader | distribution                              | no                                        |
| 2020-11-21 00:00:00 | Nigeria   | NG             | R35         | ADAMAWA | NG002         | YOLA SOUTH      | NG002021    | NGURORE                     | NG002021009       | AD_S029  | Sabon Pegi Ngurore             |     12.2512 |    9.28839 | informal      | Camp                         | Spontaneous           | 135,307 sq.m | no                       | None       | yes                     | yes            | yes            | iom                 | yes              | yes               | yes            | yes            | no                   | yes                 | yes                  | yes           | iom                 | Ancestral         | emergency shelter             |                    159 |                     592 |          20 |           25 |               28 |                32 |                78 |                 93 |               126 |                 160 |                    14 |                      16 | yes                                   | insurgency                            | none                   | place of origin           | to join family members    | I want to go back            | None                               | >75%                 | <25%                                         | <25%                                | <25%                              | 25%_50%                                       | <25%                            | >75%                      | Blankets/Mats     | on-site (<10 minutes)                | hand pumps                   | >15ltr                                      | yes                         | no                                        | not so good (not hygienic)         |                         10 | burning                 | no                                | none                                   | yes                          | no                            | yes_offsite      | yes                                   | irregular                        | cash (personal money)                   | no                           | fever                 | yes                          | yes                         | off-site (< 3 km)               | government                           | yes                            | off-site                           | 25%_50%                          | daily labourer                   |                              50 | yes                                      | yes                 | yes                                        | friends, neighbors and family | other relief assistance                   | no                                        |



source_headers: Country
Country_Code
Reported_Date
State Code
State 
LGA Code
LGA 
Number households
Number individuals
target_headers: Country
Country Code
Snapshot date
State_Pcode
State
LGA Pcode
LGA
Number of Households
Number of Individuals
column_mappings: Country
Country
Country_Code
Country Code
Reported_Date
Snapshot date
State Code
State_Pcode
State 
State
LGA Code
LGA Pcode
LGA 
LGA
Number households
Number of Households
Number individuals
Number of Individuals
output: {"column_mappings": [["Country", "Country"], ["Country_Code", "Country Code"], ["Reported_Date", "Snapshot date"], ["Date of Assessment", null], ["State Code", "State_Pcode"], ["State ", "State"], ["LGA Code", "LGA Pcode"], ["LGA ", "LGA"], ["Number households", "Number of Households"], ["Number individuals", "Number of Individuals"]]}