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    | Admin 1 Code   | LGA             | Admin 2 Code   |   Number households |   Number individuals |
|:----------|:---------------|:----------------|:---------------------|:---------|:---------------|:----------------|:---------------|--------------------:|---------------------:|
| Nigeria   | NGA            | March-31-2022   | 2022-03-19 00:00:00  | BORNO    | NGA008         | MAIDUGURI M. C. | NGA008021      |                 166 |                  944 |
| Nigeria   | NGA            | March-31-2022   | 2022-03-03 00:00:00  | ADAMAWA  | NGA002         | NUMAN           | NGA002016      |                  35 |                  245 |
| Nigeria   | NGA            | March-31-2022   | 2022-03-29 00:00:00  | YOBE     | NGA036         | POTISKUM        | NGA036014      |                   5 |                   55 |
| Nigeria   | NGA            | March-31-2022   | 2022-03-07 00:00:00  | ADAMAWA  | NGA002         | HONG            | NGA002007      |                   3 |                    8 |
| Nigeria   | NGA            | March-31-2022   | 2022-02-21 00:00:00  | YOBE     | NGA036         | DAMATURU        | NGA036003      |                 130 |                  780 |
| Nigeria   | NGA            | March-31-2022   | 2022-02-18 00:00:00  | TARABA   | NGA035         | ZING            | NGA035016      |                  40 |                  123 |
| Nigeria   | NGA            | March-31-2022   | 2022-03-01 00:00:00  | BAUCHI   | NGA005         | ZAKI            | NGA005020      |                  18 |                   90 |
| Nigeria   | NGA            | March-31-2022   | 2022-03-18 00:00:00  | BORNO    | NGA008         | KWAYA / KUSAR   | NGA008018      |                  39 |                  329 |
| Nigeria   | NGA            | March-31-2022   | 2022-02-25 00:00:00  | GOMBE    | NGA016         | KALTUNGO        | NGA016007      |                  34 |                  299 |
| Nigeria   | NGA            | March-31-2022   | 2022-03-03 00:00:00  | ADAMAWA  | NGA002         | GIREI           | NGA002005      |                  24 |                  135 |

TableB:
| 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 |



source_headers: Country
Country Code
Reported Date
Date of Assessment
State 
Admin 1 Code
LGA 
Admin 2 Code
Number households
Number individuals
target_headers: Country
Country_code
Reported_date
Date
State
State_Pcode
LGA
LGA Pcode
Number of Households
Number of Individuals
column_mappings: Country
Country
Country Code
Country_code
Reported Date
Reported_date
Date of Assessment
Date
State 
State
Admin 1 Code
State_Pcode
LGA 
LGA
Admin 2 Code
LGA Pcode
Number households
Number of Households
Number individuals
Number of Individuals
output: {"column_mappings": [["Country", "Country"], ["Country Code", "Country_code"], ["Reported Date", "Reported_date"], ["Date of Assessment", "Date"], ["State ", "State"], ["Admin 1 Code", "State_Pcode"], ["LGA ", "LGA"], ["Admin 2 Code", "LGA Pcode"], ["Number households", "Number of Households"], ["Number individuals", "Number of Individuals"]]}