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:
| Report Date         | Country                          | Country code   | admin_1_code   | admin_1_label   | admin_2_code   | admin_2_label   | date_enquete        |   hh_IDP_presents_36_mois |   ind_IDP_presents_36_mois |   hh_RETs_presents_36mo |   ind_RETs_presents_36mo |
|:--------------------|:---------------------------------|:---------------|:---------------|:----------------|:---------------|:----------------|:--------------------|--------------------------:|---------------------------:|------------------------:|-------------------------:|
| 2021-04-30 00:00:00 | Democratic Republic of the Congo | COD            | COD54          | ITURI           | COD5407        | MAHAGI          | 2021-03-27 00:00:00 |                       156 |                        400 |                       0 |                        0 |
| 2021-04-30 00:00:00 | Democratic Republic of the Congo | COD            | COD54          | ITURI           | COD5405        | DJUGU           | 2021-04-01 00:00:00 |                         0 |                          0 |                       0 |                        0 |
| 2021-04-30 00:00:00 | Democratic Republic of the Congo | COD            | COD54          | ITURI           | COD5405        | DJUGU           | 2021-03-27 00:00:00 |                       200 |                       1000 |                       6 |                       12 |
| 2021-04-30 00:00:00 | Democratic Republic of the Congo | COD            | COD54          | ITURI           | COD5407        | MAHAGI          | 2021-04-02 00:00:00 |                        68 |                        292 |                       0 |                        0 |
| 2021-04-30 00:00:00 | Democratic Republic of the Congo | COD            | COD54          | ITURI           | COD5405        | DJUGU           | 2021-04-01 00:00:00 |                         0 |                          0 |                       0 |                        0 |
| 2021-04-30 00:00:00 | Democratic Republic of the Congo | COD            | COD54          | ITURI           | COD5409        | ARU             | 2021-03-27 00:00:00 |                         0 |                          0 |                       1 |                        6 |
| 2021-04-30 00:00:00 | Democratic Republic of the Congo | COD            | COD54          | ITURI           | COD5409        | ARU             | 2021-03-30 00:00:00 |                         0 |                          0 |                       0 |                        0 |
| 2021-04-30 00:00:00 | Democratic Republic of the Congo | COD            | COD54          | ITURI           | COD5405        | DJUGU           | 2021-04-01 00:00:00 |                         0 |                          0 |                       0 |                        0 |
| 2021-04-30 00:00:00 | Democratic Republic of the Congo | COD            | COD54          | ITURI           | COD5402        | IRUMU           | 2021-04-03 00:00:00 |                        45 |                        270 |                       0 |                        0 |
| 2021-04-30 00:00:00 | Democratic Republic of the Congo | COD            | COD54          | ITURI           | COD5407        | MAHAGI          | 2021-04-04 00:00:00 |                        47 |                        234 |                       0 |                        0 |

TableB:
| Country                          | Country code   | Reported date   | admin_1_code   | admin_1_label   | admin_2_code   | admin_2_label   | date_enquete        |   hh_IDP_presents_36_mois |   ind_IDP_presents_36_mois |   hh_RETs_presents_36mo |   ind_RETs_presents_36mo |
|:---------------------------------|:---------------|:----------------|:---------------|:----------------|:---------------|:----------------|:--------------------|--------------------------:|---------------------------:|------------------------:|-------------------------:|
| Democratic Republic of the Congo | COD            | Apr-30-2022     | COD62          | SUD-KIVU        | COD6207        | WALUNGU         | 2022-03-30 00:00:00 |                         0 |                          0 |                       0 |                        0 |
| Democratic Republic of the Congo | COD            | Apr-30-2022     | COD62          | SUD-KIVU        | COD6203        | SHABUNDA        | 2022-03-29 00:00:00 |                         0 |                          0 |                      28 |                      185 |
| Democratic Republic of the Congo | COD            | Apr-30-2022     | COD62          | SUD-KIVU        | COD6212        | MWENGA          | 2022-03-25 00:00:00 |                        42 |                        253 |                       0 |                        0 |
| Democratic Republic of the Congo | COD            | Apr-30-2022     | COD62          | SUD-KIVU        | COD6203        | SHABUNDA        | 2022-04-08 00:00:00 |                        34 |                        207 |                      49 |                      294 |
| Democratic Republic of the Congo | COD            | Apr-30-2022     | COD62          | SUD-KIVU        | COD6210        | FIZI            | 2022-04-07 00:00:00 |                       187 |                        894 |                      56 |                      348 |
| Democratic Republic of the Congo | COD            | Apr-30-2022     | COD62          | SUD-KIVU        | COD6207        | WALUNGU         | 2022-03-28 00:00:00 |                       112 |                        556 |                       5 |                       31 |
| Democratic Republic of the Congo | COD            | Apr-30-2022     | COD62          | SUD-KIVU        | COD6205        | KALEHE          | 2022-03-27 00:00:00 |                       193 |                       1253 |                      68 |                      374 |
| Democratic Republic of the Congo | COD            | Apr-30-2022     | COD62          | SUD-KIVU        | COD6210        | FIZI            | 2022-03-26 00:00:00 |                         0 |                          0 |                       0 |                        0 |
| Democratic Republic of the Congo | COD            | Apr-30-2022     | COD62          | SUD-KIVU        | COD6212        | MWENGA          | 2022-04-08 00:00:00 |                        98 |                        560 |                       0 |                        0 |
| Democratic Republic of the Congo | COD            | Apr-30-2022     | COD62          | SUD-KIVU        | COD6212        | MWENGA          | 2022-04-09 00:00:00 |                        58 |                        348 |                       0 |                        0 |



source_headers: Report Date
Country
Country code
admin_1_code
admin_1_label
admin_2_code
admin_2_label
date_enquete
hh_IDP_presents_36_mois
ind_IDP_presents_36_mois
hh_RETs_presents_36mo
ind_RETs_presents_36mo
target_headers: Reported date
Country
Country code
admin_1_code
admin_1_label
admin_2_code
admin_2_label
date_enquete
hh_IDP_presents_36_mois
ind_IDP_presents_36_mois
hh_RETs_presents_36mo
ind_RETs_presents_36mo
column_mappings: Report Date
Reported date
Country
Country
Country code
Country code
admin_1_code
admin_1_code
admin_1_label
admin_1_label
admin_2_code
admin_2_code
admin_2_label
admin_2_label
date_enquete
date_enquete
hh_IDP_presents_36_mois
hh_IDP_presents_36_mois
ind_IDP_presents_36_mois
ind_IDP_presents_36_mois
hh_RETs_presents_36mo
hh_RETs_presents_36mo
ind_RETs_presents_36mo
ind_RETs_presents_36mo
output: {"column_mappings": [["Report Date", "Reported date"], ["Country", "Country"], ["Country code", "Country code"], ["admin_1_code", "admin_1_code"], ["admin_1_label", "admin_1_label"], ["admin_2_code", "admin_2_code"], ["admin_2_label", "admin_2_label"], ["date_enquete", "date_enquete"], ["hh_IDP_presents_36_mois", "hh_IDP_presents_36_mois"], ["ind_IDP_presents_36_mois", "ind_IDP_presents_36_mois"], ["hh_RETs_presents_36mo", "hh_RETs_presents_36mo"], ["ind_RETs_presents_36mo", "ind_RETs_presents_36mo"]]}