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:
| GHO (CODE)           | GHO (DISPLAY)                                                                 | GHO (URL)                                                                 | PUBLISHSTATE (CODE)   | PUBLISHSTATE (DISPLAY)   |   YEAR (DISPLAY) | REGION (CODE)   | REGION (DISPLAY)   |   STARTYEAR |   ENDYEAR | COUNTRY (CODE)   | COUNTRY (DISPLAY)   |   Numeric |
|:---------------------|:------------------------------------------------------------------------------|:--------------------------------------------------------------------------|:----------------------|:-------------------------|-----------------:|:----------------|:-------------------|------------:|----------:|:-----------------|:--------------------|----------:|
| TB_c_newinc          | Tuberculosis - new and relapse cases                                          | https://www.who.int/data/gho/indicator-metadata-registry/imr-details/333  | PUBLISHED             | Published                |             2006 | AFR             | Africa             |        2006 |      2006 | SWZ              | Eswatini            |      9018 |
| TB_c_mdr_tx          | Cases started on MDR-TB treatment                                             | https://www.who.int/data/gho/indicator-metadata-registry/imr-details/1368 | PUBLISHED             | Published                |             2012 | AFR             | Africa             |        2012 |      2012 | SWZ              | Eswatini            |       484 |
| TB_new_oth           | New cases: other                                                              | https://www.who.int/data/gho/indicator-metadata-registry/imr-details/333  | PUBLISHED             | Published                |             2012 | AFR             | Africa             |        2012 |      2012 | SWZ              | Eswatini            |         0 |
| TB_newret_oth        | Treatment history unknown                                                     | https://www.who.int/data/gho/indicator-metadata-registry/imr-details/333  | PUBLISHED             | Published                |             2012 | AFR             | Africa             |        2012 |      2012 | SWZ              | Eswatini            |         0 |
| TB_new_ep            | New cases: extrapulmonary                                                     | https://www.who.int/data/gho/indicator-metadata-registry/imr-details/333  | PUBLISHED             | Published                |             2009 | AFR             | Africa             |        2009 |      2009 | SWZ              | Eswatini            |      1903 |
| TB_1                 | Tuberculosis treatment coverage                                               | https://www.who.int/data/gho/indicator-metadata-registry/imr-details/1422 | PUBLISHED             | Published                |             2012 | AFR             | Africa             |        2012 |      2012 | SWZ              | Eswatini            |        80 |
| TB_c_dst_rlt_ret_pct | Previously treated cases tested for RR-/MDR-TB (%)                            | https://www.who.int/data/gho/indicator-metadata-registry/imr-details/1366 | PUBLISHED             | Published                |             2017 | AFR             | Africa             |        2017 |      2017 | SWZ              | Eswatini            |        75 |
| TB_c_dst_rlt_new_pct | New cases tested for RR-/MDR-TB (%)                                           | https://www.who.int/data/gho/indicator-metadata-registry/imr-details/1366 | PUBLISHED             | Published                |             2015 | AFR             | Africa             |        2015 |      2015 | SWZ              | Eswatini            |        31 |
| MDG_0000000020       | Incidence of tuberculosis (per 100 000 population per year)                   | https://www.who.int/data/gho/indicator-metadata-registry/imr-details/20   | PUBLISHED             | Published                |             2013 | AFR             | Africa             |        2013 |      2013 | SWZ              | Eswatini            |       764 |
| MDG_0000000017       | Deaths due to tuberculosis among HIV-negative people (per 100 000 population) | https://www.who.int/data/gho/indicator-metadata-registry/imr-details/17   | PUBLISHED             | Published                |             2015 | AFR             | Africa             |        2015 |      2015 | SWZ              | Eswatini            |        15 |

TableB:
| GHO (CODE)            | GHO (DISPLAY)                                                   | GHO (URL)                                                                 | PUBLISHSTATE (CODE)   | PUBLISHSTATE (DISPLAY)   |   YEAR (DISPLAY) | REGION (CODE)   | REGION (DISPLAY)   | COUNTRY (CODE)   |   STARTYEAR |   ENDYEAR | COUNTRY (DISPLAY)   |    Numeric |
|:----------------------|:----------------------------------------------------------------|:--------------------------------------------------------------------------|:----------------------|:-------------------------|-----------------:|:----------------|:-------------------|:-----------------|------------:|----------:|:--------------------|-----------:|
| MALARIA_EST_MORTALITY | Estimated malaria mortality rate (per 100 000 population)       | https://www.who.int/data/gho/indicator-metadata-registry/imr-details/16   | PUBLISHED             | Published                |             2002 | AFR             | Africa             | SWZ              |        2002 |      2002 | Eswatini            |    0.35047 |
| MALARIA_EST_MORTALITY | Estimated malaria mortality rate (per 100 000 population)       | https://www.who.int/data/gho/indicator-metadata-registry/imr-details/16   | PUBLISHED             | Published                |             2018 | AFR             | Africa             | SWZ              |        2018 |      2018 | Eswatini            |    0.31431 |
| MALARIA_MICR_POS      | Number of malaria positive cases by microscopy                  | https://www.who.int/data/gho/indicator-metadata-registry/imr-details/4641 | PUBLISHED             | Published                |             2010 | AFR             | Africa             | SWZ              |        2010 |      2010 | Eswatini            |   87       |
| MALARIA_SUSPECTS      | Number of suspected malaria cases                               | https://www.who.int/data/gho/indicator-metadata-registry/imr-details/4633 | PUBLISHED             | Published                |             2017 | AFR             | Africa             | SWZ              |        2017 |      2017 | Eswatini            | 3212       |
| MALARIA_EST_MORTALITY | Estimated malaria mortality rate (per 100 000 population)       | https://www.who.int/data/gho/indicator-metadata-registry/imr-details/16   | PUBLISHED             | Published                |             2003 | AFR             | Africa             | SWZ              |        2003 |      2003 | Eswatini            |    0       |
| MALARIA_CONF_CASES    | Number of confirmed malaria cases                               | https://www.who.int/data/gho/indicator-metadata-registry/imr-details/50   | PUBLISHED             | Published                |             2017 | AFR             | Africa             | SWZ              |        2017 |      2017 | Eswatini            | 1127       |
| MALARIA_EST_MORTALITY | Estimated malaria mortality rate (per 100 000 population)       | https://www.who.int/data/gho/indicator-metadata-registry/imr-details/16   | PUBLISHED             | Published                |             2006 | AFR             | Africa             | SWZ              |        2006 |      2006 | Eswatini            |    0       |
| MALARIA_PF_INDIG      | Number of indigenous P. falciparum malaria cases                | https://www.who.int/data/gho/indicator-metadata-registry/imr-details/4635 | PUBLISHED             | Published                |             2017 | AFR             | Africa             | SWZ              |        2017 |      2017 | Eswatini            |  440       |
| MALARIA_RDT_POS       | Number of malaria positive cases by rapid diagnostic test (RDT) | https://www.who.int/data/gho/indicator-metadata-registry/imr-details/2248 | PUBLISHED             | Published                |             2020 | AFR             | Africa             | SWZ              |        2020 |      2020 | Eswatini            |  204       |
| MALARIA_EST_INCIDENCE | Estimated malaria incidence (per 1000 population at risk)       | https://www.who.int/data/gho/indicator-metadata-registry/imr-details/4670 | PUBLISHED             | Published                |             2011 | AFR             | Africa             | SWZ              |        2011 |      2011 | Eswatini            |    1.26263 |



source_headers: GHO (CODE)
GHO (DISPLAY)
GHO (URL)
PUBLISHSTATE (CODE)
PUBLISHSTATE (DISPLAY)
YEAR (DISPLAY)
REGION (CODE)
REGION (DISPLAY)
STARTYEAR
ENDYEAR
COUNTRY (CODE)
COUNTRY (DISPLAY)
Numeric
target_headers: GHO (CODE)
GHO (DISPLAY)
GHO (URL)
PUBLISHSTATE (CODE)
PUBLISHSTATE (DISPLAY)
YEAR (DISPLAY)
REGION (CODE)
REGION (DISPLAY)
STARTYEAR
ENDYEAR
COUNTRY (CODE)
COUNTRY (DISPLAY)
Numeric
column_mappings: GHO (CODE)
GHO (CODE)
GHO (DISPLAY)
GHO (DISPLAY)
GHO (URL)
GHO (URL)
PUBLISHSTATE (CODE)
PUBLISHSTATE (CODE)
PUBLISHSTATE (DISPLAY)
PUBLISHSTATE (DISPLAY)
YEAR (DISPLAY)
YEAR (DISPLAY)
REGION (CODE)
REGION (CODE)
REGION (DISPLAY)
REGION (DISPLAY)
STARTYEAR
STARTYEAR
ENDYEAR
ENDYEAR
COUNTRY (CODE)
COUNTRY (CODE)
COUNTRY (DISPLAY)
COUNTRY (DISPLAY)
Numeric
Numeric
output: {"column_mappings": [["GHO (CODE)", "GHO (CODE)"], ["GHO (DISPLAY)", "GHO (DISPLAY)"], ["GHO (URL)", "GHO (URL)"], ["PUBLISHSTATE (CODE)", "PUBLISHSTATE (CODE)"], ["PUBLISHSTATE (DISPLAY)", "PUBLISHSTATE (DISPLAY)"], ["YEAR (DISPLAY)", "YEAR (DISPLAY)"], ["REGION (CODE)", "REGION (CODE)"], ["REGION (DISPLAY)", "REGION (DISPLAY)"], ["STARTYEAR", "STARTYEAR"], ["ENDYEAR", "ENDYEAR"], ["COUNTRY (CODE)", "COUNTRY (CODE)"], ["COUNTRY (DISPLAY)", "COUNTRY (DISPLAY)"], ["Numeric", "Numeric"]]}