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

TableB:
|   ASSI |   DOI | ASST   | ASSCT   | TISI   |     Ti | Descr                                                                                                       | ASTI   |   CONFISC | CEI   | ASORG        |   SI | ASSTAI   | RELAT   | CUB          | ASSST   | SRASI   | CHEI         | BFOR        | VAI   |
|-------:|------:|:-------|:--------|:-------|-------:|:------------------------------------------------------------------------------------------------------------|:-------|----------:|:------|:-------------|-----:|:---------|:--------|:-------------|:--------|:--------|:-------------|:------------|:------|
|      1 | 11087 | B      |         |        |  12052 | The compound was tested for the in vitro inhibition of platelet 12-lipoxygenase at a concentration of 30 uM |        |         8 |       |              |    1 |          | H       | Autocuration |         |         | CHEMBL615117 | BAO_0000019 |       |
|      2 |   684 | F      |         |        |  22226 | Compound was evaluated for its ability to mobilize calcium in 1321NI cells                                  |        |         0 |       |              |    1 |          | U       | Autocuration |         |         | CHEMBL615118 | BAO_0000219 |       |
|      3 | 15453 | B      |         |        |  22226 |                                                                                                             |        |         0 |       |              |    1 |          | U       | Autocuration |         |         | CHEMBL615119 | BAO_0000019 |       |
|      4 | 17841 | B      |         |        | 104729 | Binding affinity against A2 adenosine receptor in bovine striatal membranes using [3H]CGS-21680             |        |         4 |       | Bos taurus   |    1 | 9913.0   | H       | Autocuration |         |         | CHEMBL615120 | BAO_0000249 |       |
|      5 | 17430 | F      | 143B    |        |  80001 | In vitro cell cytotoxicity against 143-B cell lines (Human osteosarcoma cell line)                          |        |         1 | 163.0 | Homo sapiens |    1 | 9606.0   | N       | Intermediate |         |         | CHEMBL615121 | BAO_0000219 |       |
|      6 | 17430 | F      | 143B    |        |  80001 | In vitro cell cytotoxicity against 143-B cell lines (Human osteosarcoma cell line)                          |        |         1 | 163.0 | Homo sapiens |    1 | 9606.0   | N       | Intermediate |         |         | CHEMBL615122 | BAO_0000219 |       |
|      7 | 13799 | F      | 143B    |        |  80001 | Cytotoxic Activity was evaluated against 143B (TK-) tumor cells                                             |        |         1 | 163.0 | Mus musculus |    1 | 10090.0  | N       | Intermediate |         |         | CHEMBL615123 | BAO_0000219 |       |
|      8 | 17774 | F      | 143B    |        |  80001 | In vitro cell cytotoxicity was determined against 143B cell line                                            |        |         1 | 163.0 | Homo sapiens |    1 | 9606.0   | N       | Expert       |         |         | CHEMBL615124 | BAO_0000219 |       |
|      9 |  3801 | F      | 143B    |        |  80001 | Inhibitory activity against tumor osteosarcoma cell line 143B after 72 hr continuous exposure to compound   |        |         1 | 163.0 | Homo sapiens |    1 | 9606.0   | N       | Intermediate |         |         | CHEMBL615125 | BAO_0000219 |       |
|     10 | 17430 | F      | 143B    |        |  80001 | In vitro cell cytotoxicity against 143B-LTK cell lines expressed in HSV-1 TK                                |        |         1 | 163.0 | Homo sapiens |    1 | 9606.0   | N       | Intermediate |         |         | CHEMBL615126 | BAO_0000219 |       |



source_headers: assay_id
doc_id
assay_type
assay_cell_type
tissue_id
tid
description
assay_tissue
confidence_score
cell_id
assay_organism
src_id
assay_tax_id
relationship_type
curated_by
assay_strain
target_headers: ASSI
DOI
ASST
ASSCT
TISI
Ti
Descr
ASTI
CONFISC
CEI
ASORG
SI
ASSTAI
RELAT
CUB
ASSST
column_mappings: assay_id
ASSI
doc_id
DOI
assay_type
ASST
assay_cell_type
ASSCT
tissue_id
TISI
tid
Ti
description
Descr
assay_tissue
ASTI
confidence_score
CONFISC
cell_id
CEI
assay_organism
ASORG
src_id
SI
assay_tax_id
ASSTAI
relationship_type
RELAT
curated_by
CUB
assay_strain
ASSST
output: {"column_mappings": [["assay_id", "ASSI"], ["doc_id", "DOI"], ["assay_type", "ASST"], ["assay_cell_type", "ASSCT"], ["tissue_id", "TISI"], ["tid", "Ti"], ["description", "Descr"], ["assay_tissue", "ASTI"], ["confidence_score", "CONFISC"], ["cell_id", "CEI"], ["assay_organism", "ASORG"], ["src_id", "SI"], ["assay_tax_id", "ASSTAI"], ["relationship_type", "RELAT"], ["curated_by", "CUB"], ["assay_strain", "ASSST"], ["assay_test_type", null], ["assay_category", null], ["assay_subcellular_fraction", null]]}