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 | assay_subcellular_fraction   | assay_cell_type   | assay_type   |   confidence_score | curated_by   | assay_test_type   |   doc_id | assay_organism   | bao_format   | cell_id   | assay_tissue   | assay_category   | variant_id   |    tid |   src_id | description                                                                                                 | assay_tax_id   | assay_strain   |
|-----------:|:-----------------------------|:------------------|:-------------|-------------------:|:-------------|:------------------|---------:|:-----------------|:-------------|:----------|:---------------|:-----------------|:-------------|-------:|---------:|:------------------------------------------------------------------------------------------------------------|:---------------|:---------------|
|          1 |                              |                   | B            |                  8 | Autocuration |                   |    11087 |                  | BAO_0000019  |           |                |                  |              |  12052 |        1 | The compound was tested for the in vitro inhibition of platelet 12-lipoxygenase at a concentration of 30 uM |                |                |
|          2 |                              |                   | F            |                  0 | Autocuration |                   |      684 |                  | BAO_0000219  |           |                |                  |              |  22226 |        1 | Compound was evaluated for its ability to mobilize calcium in 1321NI cells                                  |                |                |
|          3 |                              |                   | B            |                  0 | Autocuration |                   |    15453 |                  | BAO_0000019  |           |                |                  |              |  22226 |        1 |                                                                                                             |                |                |
|          4 |                              |                   | B            |                  4 | Autocuration |                   |    17841 | Bos taurus       | BAO_0000249  |           |                |                  |              | 104729 |        1 | Binding affinity against A2 adenosine receptor in bovine striatal membranes using [3H]CGS-21680             | 9913.0         |                |
|          5 |                              | 143B              | F            |                  1 | Intermediate |                   |    17430 | Homo sapiens     | BAO_0000219  | 163.0     |                |                  |              |  80001 |        1 | In vitro cell cytotoxicity against 143-B cell lines (Human osteosarcoma cell line)                          | 9606.0         |                |
|          6 |                              | 143B              | F            |                  1 | Intermediate |                   |    17430 | Homo sapiens     | BAO_0000219  | 163.0     |                |                  |              |  80001 |        1 | In vitro cell cytotoxicity against 143-B cell lines (Human osteosarcoma cell line)                          | 9606.0         |                |
|          7 |                              | 143B              | F            |                  1 | Intermediate |                   |    13799 | Mus musculus     | BAO_0000219  | 163.0     |                |                  |              |  80001 |        1 | Cytotoxic Activity was evaluated against 143B (TK-) tumor cells                                             | 10090.0        |                |
|          8 |                              | 143B              | F            |                  1 | Expert       |                   |    17774 | Homo sapiens     | BAO_0000219  | 163.0     |                |                  |              |  80001 |        1 | In vitro cell cytotoxicity was determined against 143B cell line                                            | 9606.0         |                |
|          9 |                              | 143B              | F            |                  1 | Intermediate |                   |     3801 | Homo sapiens     | BAO_0000219  | 163.0     |                |                  |              |  80001 |        1 | Inhibitory activity against tumor osteosarcoma cell line 143B after 72 hr continuous exposure to compound   | 9606.0         |                |
|         10 |                              | 143B              | F            |                  1 | Intermediate |                   |    17430 | Homo sapiens     | BAO_0000219  | 163.0     |                |                  |              |  80001 |        1 | In vitro cell cytotoxicity against 143B-LTK cell lines expressed in HSV-1 TK                                | 9606.0         |                |

TableB:
|   ASSI | ASSSUBCEFRA   | ASCT   | ASST   |   CONFSC | CURAB        | ASSTTY   |   DI | ASSOR             | BAFO        | CEI   | ASSTIS   | ASSCA   | VARII   |    Ti |   SRI | RELATIT   | SRASI   | CHI          | TISI   |
|-------:|:--------------|:-------|:-------|---------:|:-------------|:---------|-----:|:------------------|:------------|:------|:---------|:--------|:--------|------:|------:|:----------|:--------|:-------------|:-------|
|   7524 |               |        | A      |        1 | Intermediate | In vivo  | 9866 | Rattus norvegicus | BAO_0000218 |       | Kidney   |         |         | 50597 |     1 | N         |         | CHEMBL618647 | 2113.0 |
|   7525 |               |        | A      |        1 | Intermediate | In vivo  | 9866 | Rattus norvegicus | BAO_0000218 |       | Kidney   |         |         | 50597 |     1 | N         |         | CHEMBL618648 | 2113.0 |
|   7526 |               |        | A      |        1 | Intermediate | In vivo  | 9866 | Rattus norvegicus | BAO_0000218 |       | Kidney   |         |         | 50597 |     1 | N         |         | CHEMBL618649 | 2113.0 |
|   7527 |               |        | A      |        1 | Intermediate | In vivo  | 9866 | Rattus norvegicus | BAO_0000218 |       | Liver    |         |         | 50597 |     1 | N         |         | CHEMBL618650 | 2107.0 |
|   7528 |               |        | A      |        1 | Intermediate | In vivo  | 9866 | Rattus norvegicus | BAO_0000218 |       | Liver    |         |         | 50597 |     1 | N         |         | CHEMBL618651 | 2107.0 |
|   7529 |               |        | A      |        1 | Intermediate | In vivo  | 9866 | Rattus norvegicus | BAO_0000218 |       | Liver    |         |         | 50597 |     1 | N         |         | CHEMBL876497 | 2107.0 |
|   7530 |               |        | A      |        1 | Intermediate | In vivo  | 9866 | Rattus norvegicus | BAO_0000218 |       | Lung     |         |         | 50597 |     1 | N         |         | CHEMBL618652 | 2048.0 |
|   7531 |               |        | A      |        1 | Intermediate | In vivo  | 9866 | Rattus norvegicus | BAO_0000218 |       | Lung     |         |         | 50597 |     1 | N         |         | CHEMBL618653 | 2048.0 |
|   7532 |               |        | A      |        1 | Intermediate | In vivo  | 9866 | Rattus norvegicus | BAO_0000218 |       | Lung     |         |         | 50597 |     1 | N         |         | CHEMBL618654 | 2048.0 |
|   7533 |               |        | A      |        1 | Intermediate |          | 6351 | Rattus norvegicus | BAO_0000218 |       |          |         |         | 50597 |     1 | N         |         | CHEMBL618655 |        |



source_headers: assay_id
assay_subcellular_fraction
assay_cell_type
assay_type
confidence_score
curated_by
assay_test_type
doc_id
assay_organism
bao_format
cell_id
assay_tissue
assay_category
variant_id
tid
src_id
target_headers: ASSI
ASSSUBCEFRA
ASCT
ASST
CONFSC
CURAB
ASSTTY
DI
ASSOR
BAFO
CEI
ASSTIS
ASSCA
VARII
Ti
SRI
column_mappings: assay_id
ASSI
assay_subcellular_fraction
ASSSUBCEFRA
assay_cell_type
ASCT
assay_type
ASST
confidence_score
CONFSC
curated_by
CURAB
assay_test_type
ASSTTY
doc_id
DI
assay_organism
ASSOR
bao_format
BAFO
cell_id
CEI
assay_tissue
ASSTIS
assay_category
ASSCA
variant_id
VARII
tid
Ti
src_id
SRI
output: {"column_mappings": [["assay_id", "ASSI"], ["assay_subcellular_fraction", "ASSSUBCEFRA"], ["assay_cell_type", "ASCT"], ["assay_type", "ASST"], ["confidence_score", "CONFSC"], ["curated_by", "CURAB"], ["assay_test_type", "ASSTTY"], ["doc_id", "DI"], ["assay_organism", "ASSOR"], ["bao_format", "BAFO"], ["cell_id", "CEI"], ["assay_tissue", "ASSTIS"], ["assay_category", "ASSCA"], ["variant_id", "VARII"], ["tid", "Ti"], ["src_id", "SRI"], ["description", null], ["assay_tax_id", null], ["assay_strain", null]]}