Task: Schema-Matching (source dataset: assays)

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:
|   assay_id | cell_id   | curated_by   | tissue_id   | assay_subcellular_fraction   | assay_type   | src_assay_id   | assay_tax_id   | assay_organism   | variant_id   |   confidence_score |   doc_id |   src_id | bao_format   | chembl_id    | assay_strain   | description                                                                                                 | assay_test_type   | assay_category   |
|-----------:|:----------|:-------------|:------------|:-----------------------------|:-------------|:---------------|:---------------|:-----------------|:-------------|-------------------:|---------:|---------:|:-------------|:-------------|:---------------|:------------------------------------------------------------------------------------------------------------|:------------------|:-----------------|
|          1 |           | Aut0curati0n |             |                              | B            |                |                |                  |              |                  8 |    11087 |        1 | BxOp000019   | CHEMBL71511y |                | The compound was tested for the in vitro inhibition of platelet 12-lipoxygenase at a concentration of 30 uM |                   |                  |
|          2 |           | Aut9curqtion |             |                              | F            |                |                |                  |              |                  0 |      684 |        1 | BAO000022o   | CHEMBi615218 |                | Compound was evaluated for its ability to mobilize calcium in 1321NI cells                                  |                   |                  |
|          3 |           | Aut0chration |             |                              | B            |                |                |                  |              |                  0 |    15453 |        1 | vAO0p00019   | CtwMBL615119 |                |                                                                                                             |                   |                  |
|          4 |           | Auroduration |             |                              | B            |                | 13357.0        | Boctaurus        |              |                  4 |    17841 |        1 | gAl0000249   | CHEMBL61y130 |                | Binding affinity against A2 adenosine receptor in bovine striatal membranes using [3H]CGS-21680             |                   |                  |
|          5 | 373.0     | untermeriate |             |                              | F            |                | 3569.0         | Hlmosqpiens      |              |                  1 |    17430 |        1 | BAk000021o   | vHdMBL615121 |                | In vitro cell cytotoxicity against 143-B cell lines (Human osteosarcoma cell line)                          |                   |                  |
|          6 | 909.0     | Intermedlat3 |             |                              | F            |                | 13954.0        | H8moeapiens      |              |                  1 |    17430 |        1 | BAO00o0229   | CjEMBL61r122 |                | In vitro cell cytotoxicity against 143-B cell lines (Human osteosarcoma cell line)                          |                   |                  |
|          7 | 631.0     | untermddiate |             |                              | F            |                | 3400.0         | Musk6sculus      |              |                  1 |    13799 |        1 | BsO0p00219   | CHdkBL615123 |                | Cytotoxic Activity was evaluated against 143B (TK-) tumor cells                                             |                   |                  |
|          8 | 821.0     | 2xpert       |             |                              | F            |                | 2327.0         | Honosapiena      |              |                  1 |    17774 |        1 | BsO0009219   | CH2MBL615224 |                | In vitro cell cytotoxicity was determined against 143B cell line                                            |                   |                  |
|          9 | 756.0     | Intermwxiate |             |                              | F            |                | 30999.0        | Homosapjems      |              |                  1 |     3801 |        1 | BAi00002w9   | CmEMBL6151e5 |                | Inhibitory activity against tumor osteosarcoma cell line 143B after 72 hr continuous exposure to compound   |                   |                  |
|         10 | 440.0     | In5ermedia5e |             |                              | F            |                | 1934.0         | H8mosapiems      |              |                  1 |    17430 |        1 | BqO9000219   | CjEMBL615w26 |                | In vitro cell cytotoxicity against 143B-LTK cell lines expressed in HSV-1 TK                                |                   |                  |

TableB:
|   assays_ASSI | assays_CI   | assays_CURAB   | assays_TII   | assays_ASSSUBCEFRAC   | assays_ASSTY   | assays_SASSI   |   assays_ASSTI | assays_ASORG      | assays_VARI   |   assays_CONFSCO |   assays_DOI |   assays_SRI | assays_BFO   | assays_CHI   | assays_ASST   | assays_ASTI   | assays_ASCET   |   assays_T | assays_RELATITY   |
|--------------:|:------------|:---------------|:-------------|:----------------------|:---------------|:---------------|---------------:|:------------------|:--------------|-----------------:|-------------:|-------------:|:-------------|:-------------|:--------------|:--------------|:---------------|-----------:|:------------------|
|          7524 |             | Intermediate   | 2113.0       |                       | A              |                |          10116 | Rattus norvegicus |               |                1 |         9866 |            1 | BAO_0000218  | CHEMBL618647 |               | Kidney        |                |      50597 | N                 |
|          7525 |             | Intermediate   | 2113.0       |                       | A              |                |          10116 | Rattus norvegicus |               |                1 |         9866 |            1 | BAO_0000218  | CHEMBL618648 |               | Kidney        |                |      50597 | N                 |
|          7526 |             | Intermediate   | 2113.0       |                       | A              |                |          10116 | Rattus norvegicus |               |                1 |         9866 |            1 | BAO_0000218  | CHEMBL618649 |               | Kidney        |                |      50597 | N                 |
|          7527 |             | Intermediate   | 2107.0       |                       | A              |                |          10116 | Rattus norvegicus |               |                1 |         9866 |            1 | BAO_0000218  | CHEMBL618650 |               | Liver         |                |      50597 | N                 |
|          7528 |             | Intermediate   | 2107.0       |                       | A              |                |          10116 | Rattus norvegicus |               |                1 |         9866 |            1 | BAO_0000218  | CHEMBL618651 |               | Liver         |                |      50597 | N                 |
|          7529 |             | Intermediate   | 2107.0       |                       | A              |                |          10116 | Rattus norvegicus |               |                1 |         9866 |            1 | BAO_0000218  | CHEMBL876497 |               | Liver         |                |      50597 | N                 |
|          7530 |             | Intermediate   | 2048.0       |                       | A              |                |          10116 | Rattus norvegicus |               |                1 |         9866 |            1 | BAO_0000218  | CHEMBL618652 |               | Lung          |                |      50597 | N                 |
|          7531 |             | Intermediate   | 2048.0       |                       | A              |                |          10116 | Rattus norvegicus |               |                1 |         9866 |            1 | BAO_0000218  | CHEMBL618653 |               | Lung          |                |      50597 | N                 |
|          7532 |             | Intermediate   | 2048.0       |                       | A              |                |          10116 | Rattus norvegicus |               |                1 |         9866 |            1 | BAO_0000218  | CHEMBL618654 |               | Lung          |                |      50597 | N                 |
|          7533 |             | Intermediate   |              |                       | A              |                |          10116 | Rattus norvegicus |               |                1 |         6351 |            1 | BAO_0000218  | CHEMBL618655 |               |               |                |      50597 | N                 |



source_headers: assay_id
cell_id
curated_by
tissue_id
assay_subcellular_fraction
assay_type
src_assay_id
assay_tax_id
assay_organism
variant_id
confidence_score
doc_id
src_id
bao_format
chembl_id
assay_strain
target_headers: assays_ASSI
assays_CI
assays_CURAB
assays_TII
assays_ASSSUBCEFRAC
assays_ASSTY
assays_SASSI
assays_ASSTI
assays_ASORG
assays_VARI
assays_CONFSCO
assays_DOI
assays_SRI
assays_BFO
assays_CHI
assays_ASST
column_mappings: assay_id
assays_ASSI
cell_id
assays_CI
curated_by
assays_CURAB
tissue_id
assays_TII
assay_subcellular_fraction
assays_ASSSUBCEFRAC
assay_type
assays_ASSTY
src_assay_id
assays_SASSI
assay_tax_id
assays_ASSTI
assay_organism
assays_ASORG
variant_id
assays_VARI
confidence_score
assays_CONFSCO
doc_id
assays_DOI
src_id
assays_SRI
bao_format
assays_BFO
chembl_id
assays_CHI
assay_strain
assays_ASST
output: {"column_mappings": [["assay_id", "assays_ASSI"], ["cell_id", "assays_CI"], ["curated_by", "assays_CURAB"], ["tissue_id", "assays_TII"], ["assay_subcellular_fraction", "assays_ASSSUBCEFRAC"], ["assay_type", "assays_ASSTY"], ["src_assay_id", "assays_SASSI"], ["assay_tax_id", "assays_ASSTI"], ["assay_organism", "assays_ASORG"], ["variant_id", "assays_VARI"], ["confidence_score", "assays_CONFSCO"], ["doc_id", "assays_DOI"], ["src_id", "assays_SRI"], ["bao_format", "assays_BFO"], ["chembl_id", "assays_CHI"], ["assay_strain", "assays_ASST"], ["description", null], ["assay_test_type", null], ["assay_category", null]]}