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 | tissue_id   |   doc_id | assay_tax_id   | bao_format   | assay_category   | src_assay_id   | cell_id   | curated_by   |   src_id | assay_organism   | assay_test_type   |   confidence_score | assay_subcellular_fraction   | relationship_type   | assay_strain   | description                                                                                                 | assay_type   | assay_tissue   |
|-----------:|:------------|---------:|:---------------|:-------------|:-----------------|:---------------|:----------|:-------------|---------:|:-----------------|:------------------|-------------------:|:-----------------------------|:--------------------|:---------------|:------------------------------------------------------------------------------------------------------------|:-------------|:---------------|
|          1 |             |    11087 |                | BAO_0000019  |                  |                |           | Autocuration |        1 |                  |                   |                  8 |                              | H                   |                | The compound was tested for the in vitro inhibition of platelet 12-lipoxygenase at a concentration of 30 uM | B            |                |
|          2 |             |      684 |                | BAO_0000219  |                  |                |           | Autocuration |        1 |                  |                   |                  0 |                              | U                   |                | Compound was evaluated for its ability to mobilize calcium in 1321NI cells                                  | F            |                |
|          3 |             |    15453 |                | BAO_0000019  |                  |                |           | Autocuration |        1 |                  |                   |                  0 |                              | U                   |                |                                                                                                             | B            |                |
|          4 |             |    17841 | 9913.0         | BAO_0000249  |                  |                |           | Autocuration |        1 | Bos taurus       |                   |                  4 |                              | H                   |                | Binding affinity against A2 adenosine receptor in bovine striatal membranes using [3H]CGS-21680             | B            |                |
|          5 |             |    17430 | 9606.0         | BAO_0000219  |                  |                | 163.0     | Intermediate |        1 | Homo sapiens     |                   |                  1 |                              | N                   |                | In vitro cell cytotoxicity against 143-B cell lines (Human osteosarcoma cell line)                          | F            |                |
|          6 |             |    17430 | 9606.0         | BAO_0000219  |                  |                | 163.0     | Intermediate |        1 | Homo sapiens     |                   |                  1 |                              | N                   |                | In vitro cell cytotoxicity against 143-B cell lines (Human osteosarcoma cell line)                          | F            |                |
|          7 |             |    13799 | 10090.0        | BAO_0000219  |                  |                | 163.0     | Intermediate |        1 | Mus musculus     |                   |                  1 |                              | N                   |                | Cytotoxic Activity was evaluated against 143B (TK-) tumor cells                                             | F            |                |
|          8 |             |    17774 | 9606.0         | BAO_0000219  |                  |                | 163.0     | Expert       |        1 | Homo sapiens     |                   |                  1 |                              | N                   |                | In vitro cell cytotoxicity was determined against 143B cell line                                            | F            |                |
|          9 |             |     3801 | 9606.0         | BAO_0000219  |                  |                | 163.0     | Intermediate |        1 | Homo sapiens     |                   |                  1 |                              | N                   |                | Inhibitory activity against tumor osteosarcoma cell line 143B after 72 hr continuous exposure to compound   | F            |                |
|         10 |             |    17430 | 9606.0         | BAO_0000219  |                  |                | 163.0     | Intermediate |        1 | Homo sapiens     |                   |                  1 |                              | N                   |                | In vitro cell cytotoxicity against 143B-LTK cell lines expressed in HSV-1 TK                                | F            |                |

TableB:
|   assays_ASSI | assays_TII   |   assays_DI |   assays_ASTI | assays_BAFOR   | assays_ASCAT   | assays_SRASSI   | assays_CEI   | assays_CURB   |   assays_SRI | assays_ASSORGA    | assays_ASSTETY   |   assays_CONFSCO | assays_ASSUBCFRA   | assays_RELTY   | assays_ASST   | assays_ASCT   |   assays_T | assays_CHI   | assays_VARI   |
|--------------:|:-------------|------------:|--------------:|:---------------|:---------------|:----------------|:-------------|:--------------|-------------:|:------------------|:-----------------|-----------------:|:-------------------|:---------------|:--------------|:--------------|-----------:|:-------------|:--------------|
|          7524 | 2113.0       |        9866 |         10116 | BAO_0000218    |                |                 |              | Intermediate  |            1 | Rattus norvegicus | In vivo          |                1 |                    | N              |               |               |      50597 | CHEMBL618647 |               |
|          7525 | 2113.0       |        9866 |         10116 | BAO_0000218    |                |                 |              | Intermediate  |            1 | Rattus norvegicus | In vivo          |                1 |                    | N              |               |               |      50597 | CHEMBL618648 |               |
|          7526 | 2113.0       |        9866 |         10116 | BAO_0000218    |                |                 |              | Intermediate  |            1 | Rattus norvegicus | In vivo          |                1 |                    | N              |               |               |      50597 | CHEMBL618649 |               |
|          7527 | 2107.0       |        9866 |         10116 | BAO_0000218    |                |                 |              | Intermediate  |            1 | Rattus norvegicus | In vivo          |                1 |                    | N              |               |               |      50597 | CHEMBL618650 |               |
|          7528 | 2107.0       |        9866 |         10116 | BAO_0000218    |                |                 |              | Intermediate  |            1 | Rattus norvegicus | In vivo          |                1 |                    | N              |               |               |      50597 | CHEMBL618651 |               |
|          7529 | 2107.0       |        9866 |         10116 | BAO_0000218    |                |                 |              | Intermediate  |            1 | Rattus norvegicus | In vivo          |                1 |                    | N              |               |               |      50597 | CHEMBL876497 |               |
|          7530 | 2048.0       |        9866 |         10116 | BAO_0000218    |                |                 |              | Intermediate  |            1 | Rattus norvegicus | In vivo          |                1 |                    | N              |               |               |      50597 | CHEMBL618652 |               |
|          7531 | 2048.0       |        9866 |         10116 | BAO_0000218    |                |                 |              | Intermediate  |            1 | Rattus norvegicus | In vivo          |                1 |                    | N              |               |               |      50597 | CHEMBL618653 |               |
|          7532 | 2048.0       |        9866 |         10116 | BAO_0000218    |                |                 |              | Intermediate  |            1 | Rattus norvegicus | In vivo          |                1 |                    | N              |               |               |      50597 | CHEMBL618654 |               |
|          7533 |              |        6351 |         10116 | BAO_0000218    |                |                 |              | Intermediate  |            1 | Rattus norvegicus |                  |                1 |                    | N              |               |               |      50597 | CHEMBL618655 |               |



source_headers: assay_id
tissue_id
doc_id
assay_tax_id
bao_format
assay_category
src_assay_id
cell_id
curated_by
src_id
assay_organism
assay_test_type
confidence_score
assay_subcellular_fraction
relationship_type
assay_strain
target_headers: assays_ASSI
assays_TII
assays_DI
assays_ASTI
assays_BAFOR
assays_ASCAT
assays_SRASSI
assays_CEI
assays_CURB
assays_SRI
assays_ASSORGA
assays_ASSTETY
assays_CONFSCO
assays_ASSUBCFRA
assays_RELTY
assays_ASST
column_mappings: assay_id
assays_ASSI
tissue_id
assays_TII
doc_id
assays_DI
assay_tax_id
assays_ASTI
bao_format
assays_BAFOR
assay_category
assays_ASCAT
src_assay_id
assays_SRASSI
cell_id
assays_CEI
curated_by
assays_CURB
src_id
assays_SRI
assay_organism
assays_ASSORGA
assay_test_type
assays_ASSTETY
confidence_score
assays_CONFSCO
assay_subcellular_fraction
assays_ASSUBCFRA
relationship_type
assays_RELTY
assay_strain
assays_ASST
output: {"column_mappings": [["assay_id", "assays_ASSI"], ["tissue_id", "assays_TII"], ["doc_id", "assays_DI"], ["assay_tax_id", "assays_ASTI"], ["bao_format", "assays_BAFOR"], ["assay_category", "assays_ASCAT"], ["src_assay_id", "assays_SRASSI"], ["cell_id", "assays_CEI"], ["curated_by", "assays_CURB"], ["src_id", "assays_SRI"], ["assay_organism", "assays_ASSORGA"], ["assay_test_type", "assays_ASSTETY"], ["confidence_score", "assays_CONFSCO"], ["assay_subcellular_fraction", "assays_ASSUBCFRA"], ["relationship_type", "assays_RELTY"], ["assay_strain", "assays_ASST"], ["description", null], ["assay_type", null], ["assay_tissue", null]]}