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:
| countryCode   | id   | name          | code   | startDate   | endDate   |   year | requirements   |   funding | percentFunded   |
|:--------------|:-----|:--------------|:-------|:------------|:----------|-------:|:---------------|----------:|:----------------|
| GLP           |      | Not specified |        |             |           |   2017 |                |         0 |                 |
| GLP           |      | Not specified |        |             |           |   2019 |                |         0 |                 |
| GLP           |      | Not specified |        |             |           |   2018 |                |         0 |                 |

TableB:
| aid            | reporting   | reporting_ref   | funder_ref   | title                                                 | status_code    | day_start   | day_end    | description                                                                                                                 | country_code   |   country_percent | sector_group   | sector_code                                        |   sector_percent | location_code   | location_name   | location_longitude   | location_latitude   | location_precision   | location_precision_description   | activity_url                                   |
|:---------------|:------------|:----------------|:-------------|:------------------------------------------------------|:---------------|:------------|:-----------|:----------------------------------------------------------------------------------------------------------------------------|:---------------|------------------:|:---------------|:---------------------------------------------------|-----------------:|:----------------|:----------------|:---------------------|:--------------------|:---------------------|:---------------------------------|:-----------------------------------------------|
| FR-3-CZZ2663   | AFD         | FR-3            | FR           | Appui du CIRAD à Plan Sierra et coopération régionale | Implementation | 2021-03-03  | 2024-12-31 | #OH - Promotion de pratiques agricoles durables et protection sanitaire dans les Caraïbes, incluant une approche One Health | Guadeloupe     |                 5 | Agriculture    | Plant and post-harvest protection and pest control |              100 |                 |                 |                      |                     |                      | None                             | https://d-portal.org/q.html?aid=FR-3-CZZ2663   |
| FR-3-CZZ266301 | AFD         | FR-3            | FR           | Appui du CIRAD à Plan Sierra et coopération régionale | Implementation | 2021-03-03  | 2024-12-31 | #OH - Promotion de pratiques agricoles durables et protection sanitaire dans les Caraïbes, incluant une approche One Health | Guadeloupe     |                 5 | Agriculture    | Plant and post-harvest protection and pest control |              100 |                 |                 | -3.0322611           | 48.800026           |                      | None                             | https://d-portal.org/q.html?aid=FR-3-CZZ266301 |
| FR-3-CZZ266302 | AFD         | FR-3            | FR           | Appui du CIRAD à Plan Sierra et coopération régionale | Implementation | 2021-03-03  | 2024-12-31 | #OH - Promotion de pratiques agricoles durables et protection sanitaire dans les Caraïbes, incluant une approche One Health | Guadeloupe     |                 5 | Agriculture    | Plant and post-harvest protection and pest control |              100 |                 |                 | -3.0322611           | 48.800026           |                      | None                             | https://d-portal.org/q.html?aid=FR-3-CZZ266302 |



source_headers: countryCode
startDate
endDate
target_headers: country_code
day_start
day_end
column_mappings: countryCode
country_code
startDate
day_start
endDate
day_end
output: {"column_mappings": [["countryCode", "country_code"], ["id", null], ["name", null], ["code", null], ["startDate", "day_start"], ["endDate", "day_end"], ["year", null], ["requirements", null], ["funding", null], ["percentFunded", null]]}