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:
| Snapshot date       | 1#1#d#1 _Site Name   | 1#1#a#1 _Site Assessment Date   |   1#1#f#2_GPS Lat |   1#1#f#1_GPS Long | 1#1#a#3_Admin 0                  | Admin 0 Pcode   | 1#1#e#1_Admin 1   | Admin 1 Pcode   | 1#1#e#2_Admin 2   | Admin 2 Pcode   | 1#1#e#3_Admin 3   | Admin 3 Pcode   | 1#1#e#4_Admin 4   |   2#1#a#1_No# of Households |   2#1#b#1_No# of Individuals | 1#5#b#2 Place of Origin of the largest IDP group (Admin 2)   | Place of Origin of the largest IDP group (Admin 2 Pcode)   |
|:--------------------|:---------------------|:--------------------------------|------------------:|-------------------:|:---------------------------------|:----------------|:------------------|:----------------|:------------------|:----------------|:------------------|:----------------|:------------------|----------------------------:|-----------------------------:|:-------------------------------------------------------------|:-----------------------------------------------------------|
| 2019-07-30 00:00:00 | Kasenyi              | 2019-07-25 00:00:00             |          -1.616   |            28.743  | Democratic Republic of the Congo | COD             | Nord-Kivu         | COD61           | Masisi            | COD6103         | Bahunde           | COD610307       | Mupfuni Kibabi    |                         689 |                         2012 | Masisi                                                       | COD6103                                                    |
| 2019-07-30 00:00:00 | Kibabi/Buporo        | 2019-07-25 00:00:00             |          -1.54919 |            28.8493 | Democratic Republic of the Congo | COD             | Nord-Kivu         | COD61           | Masisi            | COD6103         | Bahunde           | COD610307       | Mupfuni Kibabi    |                         622 |                         2633 | Masisi                                                       | COD6103                                                    |
| 2019-07-30 00:00:00 | Kizimba              | 2019-07-25 00:00:00             |          -1.24881 |            29.0944 | Democratic Republic of the Congo | COD             | Nord-Kivu         | COD61           | Rutshuru          | COD6111         | Bwito             | COD611101       | Bishusha          |                         995 |                         2911 | Rutshuru                                                     | COD6111                                                    |
| 2019-07-30 00:00:00 | Katale               | 2019-07-25 00:00:00             |          -1.43901 |            28.8733 | Democratic Republic of the Congo | COD             | Nord-Kivu         | COD61           | Masisi            | COD6103         | Osso Banyungu     | COD610303       | Bapfuna           |                        1734 |                         5883 | Masisi                                                       | COD6103                                                    |
| 2019-07-30 00:00:00 | Kanaba               | 2019-07-25 00:00:00             |          -1.22834 |            29.2204 | Democratic Republic of the Congo | COD             | Nord-Kivu         | COD61           | Rutshuru          | COD6111         | Bwito             | COD611101       | Tongo             |                         842 |                         3421 | Rutshuru                                                     | COD6111                                                    |
| 2019-07-30 00:00:00 | Katoyi               | 2019-07-25 00:00:00             |          -1.588   |            28.774  | Democratic Republic of the Congo | COD             | Nord-Kivu         | COD61           | Masisi            | COD6103         | Katoyi            | COD610302       | Nyalipe           |                         584 |                         1659 | Masisi                                                       | COD6103                                                    |
| 2019-07-30 00:00:00 | Muheto               | 2019-07-25 00:00:00             |          -1.336   |            28.95   | Democratic Republic of the Congo | COD             | Nord-Kivu         | COD61           | Masisi            | COD6103         | Bashali           | COD610304       | Bashali Kaembe    |                         689 |                         1990 | Masisi                                                       | COD6103                                                    |
| 2019-07-30 00:00:00 | Kabizo               | 2019-07-25 00:00:00             |          -1.16402 |            29.2276 | Democratic Republic of the Congo | COD             | Nord-Kivu         | COD61           | Rutshuru          | COD6111         | Bwito             | COD611101       | Tongo             |                         877 |                         4092 | Rutshuru                                                     | COD6111                                                    |
| 2019-07-30 00:00:00 | Rushashi             | 2019-07-25 00:00:00             |          -1.12507 |            29.2016 | Democratic Republic of the Congo | COD             | Nord-Kivu         | COD61           | Rutshuru          | COD6111         | Bwito             | COD611101       | Tongo             |                         518 |                         2189 | Rutshuru                                                     | COD6111                                                    |
| 2019-07-30 00:00:00 | Bushani              | 2019-07-25 00:00:00             |          -1.31609 |            28.7436 | Democratic Republic of the Congo | COD             | Nord-Kivu         | COD61           | Masisi            | COD6103         | Osso Banyungu     | COD610303       | Biiri             |                         430 |                         1280 | Masisi                                                       | COD6103                                                    |

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: Snapshot date
1#1#a#1 _Site Assessment Date
1#1#a#3_Admin 0
Admin 0 Pcode
1#1#e#1_Admin 1
Admin 1 Pcode
1#1#e#2_Admin 2
Admin 2 Pcode
2#1#b#1_No# of Individuals
target_headers: Reported date
date_enquete
Country
Country code
admin_1_label
admin_1_code
admin_2_label
admin_2_code
ind_IDP_presents_36_mois
column_mappings: Snapshot date
Reported date
1#1#a#1 _Site Assessment Date
date_enquete
1#1#a#3_Admin 0
Country
Admin 0 Pcode
Country code
1#1#e#1_Admin 1
admin_1_label
Admin 1 Pcode
admin_1_code
1#1#e#2_Admin 2
admin_2_label
Admin 2 Pcode
admin_2_code
2#1#b#1_No# of Individuals
ind_IDP_presents_36_mois
output: {"column_mappings": [["Snapshot date", "Reported date"], ["1#1#d#1 _Site Name", null], ["1#1#a#1 _Site Assessment Date", "date_enquete"], ["1#1#f#2_GPS Lat", null], ["1#1#f#1_GPS Long", null], ["1#1#a#3_Admin 0", "Country"], ["Admin 0 Pcode", "Country code"], ["1#1#e#1_Admin 1", "admin_1_label"], ["Admin 1 Pcode", "admin_1_code"], ["1#1#e#2_Admin 2", "admin_2_label"], ["Admin 2 Pcode", "admin_2_code"], ["1#1#e#3_Admin 3", null], ["Admin 3 Pcode", null], ["1#1#e#4_Admin 4", null], ["2#1#a#1_No# of Households", null], ["2#1#b#1_No# of Individuals", "ind_IDP_presents_36_mois"], ["1#5#b#2 Place of Origin of the largest IDP group (Admin 2)", null], ["Place of Origin of the largest IDP group (Admin 2 Pcode)", null]]}