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                | State   | State_Pcode   | LGA             | LGA Pcode   |   Number of Households |   Number of Individuals |
|:----------|:---------------|:----------------|:--------------------|:--------|:--------------|:----------------|:------------|-----------------------:|------------------------:|
| Nigeria   | NGA            | Oct-31-2021     | 2021-10-03 00:00:00 | YOBE    | NG036         | BURSARI         | NG036002    |                     68 |                     205 |
| Nigeria   | NGA            | Oct-31-2021     | 2021-09-07 00:00:00 | BORNO   | NG008         | MAIDUGURI M. C. | NG008021    |                     55 |                     381 |
| Nigeria   | NGA            | Oct-31-2021     | 2021-10-11 00:00:00 | ADAMAWA | NG002         | NUMAN           | NG002016    |                    238 |                    1666 |
| Nigeria   | NGA            | Oct-31-2021     | 2021-10-03 00:00:00 | YOBE    | NG036         | KARASAWA        | NG036010    |                      3 |                       9 |
| Nigeria   | NGA            | Oct-31-2021     | 2021-10-02 00:00:00 | ADAMAWA | NG002         | HONG            | NG002007    |                      4 |                      16 |
| Nigeria   | NGA            | Oct-31-2021     | 2021-09-13 00:00:00 | BAUCHI  | NG005         | SHIRA           | NG005016    |                      3 |                      30 |
| Nigeria   | NGA            | Oct-31-2021     | 2021-10-03 00:00:00 | ADAMAWA | NG002         | GOMBI           | NG002004    |                     21 |                      72 |
| Nigeria   | NGA            | Oct-31-2021     | 2021-10-01 00:00:00 | TARABA  | NG035         | LAU             | NG035010    |                      8 |                      29 |
| Nigeria   | NGA            | Oct-31-2021     | 2021-09-13 00:00:00 | TARABA  | NG035         | IBI             | NG035006    |                     13 |                     160 |
| Nigeria   | NGA            | Oct-31-2021     | 2021-09-07 00:00:00 | TARABA  | NG035         | KARIM-LAMIDO    | NG035008    |                     57 |                     306 |

TableB:
| Country   | Country_Code   | Reported_Date   | Date of Assessment   | State    | State Code   | LGA             | LGA Code   |   Number households |   Number individuals |
|:----------|:---------------|:----------------|:---------------------|:---------|:-------------|:----------------|:-----------|--------------------:|---------------------:|
| Nigeria   | NGA            | Jan-31-2022     | 2021-12-12 00:00:00  | Borno    | NGA008       | Jere            | NGA008013  |                  82 |                  522 |
| Nigeria   | NGA            | Jan-31-2022     | 2021-12-22 00:00:00  | Taraba   | NGA035       | Wukari          | NGA035014  |                  47 |                  256 |
| Nigeria   | NGA            | Jan-31-2022     | 2021-12-12 00:00:00  | Borno    | NGA008       | Konduga         | NGA008016  |                 548 |                 1905 |
| Nigeria   | NGA            | Jan-31-2022     | 2021-11-27 00:00:00  | Borno    | NGA008       | Jere            | NGA008013  |                  39 |                  271 |
| Nigeria   | NGA            | Jan-31-2022     | 2021-12-04 00:00:00  | Borno    | NGA008       | Damboa          | NGA008007  |                 161 |                  622 |
| Nigeria   | NGA            | Jan-31-2022     | 2021-12-26 00:00:00  | Borno    | NGA008       | Maiduguri M. C. | NGA008021  |                 137 |                  884 |
| Nigeria   | NGA            | Jan-31-2022     | 2021-12-13 00:00:00  | Borno    | NGA008       | Maiduguri M. C. | NGA008021  |                  31 |                  214 |
| Nigeria   | NGA            | Jan-31-2022     | 2021-11-30 00:00:00  | Borno    | NGA008       | Gwoza           | NGA008011  |                2068 |                10251 |
| Nigeria   | NGA            | Jan-31-2022     | 2021-12-19 00:00:00  | Borno    | NGA008       | Maiduguri M. C. | NGA008021  |                  49 |                  220 |
| Nigeria   | NGA            | Jan-31-2022     | 2021-12-01 00:00:00  | Borno    | NGA008       | Gwoza           | NGA008011  |                1193 |                 6354 |



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