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:
|   DTM Round | State   | State_Pcode   | LGA             | LGA Pcode   | WARD                | CODs_Ward_Pcode   | SiteID   | Site Name                |   Longitude |   Latitude |   Number of Households |   Number of Individuals |
|------------:|:--------|:--------------|:----------------|:------------|:--------------------|:------------------|:---------|:-------------------------|------------:|-----------:|-----------------------:|------------------------:|
|          29 | BORNO   | NG008         | DIKWA           | NG008008    | DIKWA               | NG008008002       | BO_S142  | AGRIC IDP CAMP           |     13.9029 |   12.0368  |                    968 |                    5443 |
|          29 | ADAMAWA | NG002         | YOLA SOUTH      | NG002021    | NAMTARI             | NG002021008       | AD_S030  | KILBAJE EXTENSION        |     12.3824 |    9.25212 |                     68 |                     492 |
|          29 | TARABA  | NG035         | JALINGO         | NG035007    | KONA                | NG035007004       | TR_S052  | JAURO ISA PRIMARY SCHOOL |     11.3334 |    8.94536 |                    250 |                    1250 |
|          29 | BORNO   | NG008         | MAIDUGURI M. C. | NG008021    | MAISANDARI          | NG008021013       | BO_S116  | AWULAM CAMP              |     13.1342 |   11.7899  |                     47 |                     219 |
|          29 | BORNO   | NG008         | JERE            | NG008013    | DUSUMAN             | NG008013004       | BO_S210  | BAJAURO CAMP             |     13.2392 |   11.8668  |                     59 |                     311 |
|          29 | BORNO   | NG008         | GWOZA           | NG008011    | PULKA/BOKKO         | NG008011013       | BO_S246  | CAMP C (WEGE EXTENSION)  |     13.7741 |   11.2274  |                   2046 |                    9721 |
|          29 | BORNO   | NG008         | DAMBOA          | NG008007    | DAMBOA              | NG008007005       | BO_S218  | MOBILE CLINIC            |     12.7583 |   11.1597  |                     20 |                      84 |
|          29 | BORNO   | NG008         | JERE            | NG008013    | DUSUMAN             | NG008013004       | BO_S195  | MUNA KORI BULA YALAYE    |     13.2411 |   11.8695  |                     36 |                     203 |
|          29 | BORNO   | NG008         | MAIDUGURI M. C. | NG008021    | LAMISULA/JABBA MARI | NG008021010       | BO_S039  | DUJIMA CAMP              |     13.1402 |   11.8494  |                     25 |                     223 |
|          29 | BORNO   | NG008         | JERE            | NG008013    | OLD MAIDUGURI       | NG008013011       | BO_S270  | ANNUR CAMP               |     13.1813 |   11.8718  |                     95 |                     307 |



source_headers: State Code
State 
LGA Code
LGA 
Number households
Number individuals
target_headers: State_Pcode
State
LGA Pcode
LGA
Number of Households
Number of Individuals
column_mappings: 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", null], ["Country_Code", null], ["Reported_Date", null], ["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"]]}