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:
| 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 |



source_headers: Reported_Date
Country
Country_Code
State of Displacement
State Pcode
LGA
LGA Pcode
Estimated Household Number
Estimated Number of IDP
target_headers: Reported_Date
Country
Country_Code
State 
State Code
LGA 
LGA Code
Number households
Number individuals
column_mappings: Reported_Date
Reported_Date
Country
Country
Country_Code
Country_Code
State of Displacement
State 
State Pcode
State Code
LGA
LGA 
LGA Pcode
LGA Code
Estimated Household Number
Number households
Estimated Number of IDP
Number individuals
output: {"column_mappings": [["Reported_Date", "Reported_Date"], ["Country", "Country"], ["Country_Code", "Country_Code"], ["Round", null], ["State of Displacement", "State "], ["State Pcode", "State Code"], ["LGA", "LGA "], ["LGA Pcode", "LGA Code"], ["Ward", null], ["CODs PCODE", null], ["Estimated Household Number", "Number households"], ["Estimated Number of IDP", "Number 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]]}