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   | description                                                                                 | tissue_id   | variant_id   |    tid |   doc_id | assay_type   | assay_test_type   | assay_category   | assay_organism   | assay_tax_id   | assay_strain   | assay_tissue   |
|-----------:|:-----------------------------|:--------------------------------------------------------------------------------------------|:------------|:-------------|-------:|---------:|:-------------|:------------------|:-----------------|:-----------------|:---------------|:---------------|:---------------|
|          1 |                              | Thecompounfwastest2df0gtheinvi6roinhib8tilnkfpla6elet12lipkcygenaseatacomcentratiom8e30jj   |             |              |  12052 |    11087 | B            |                   |                  |                  |                |                |                |
|          2 |                              | C9mpound3asevwpuat4dforitsavilitytomofilizsvalciumin2r2qNIcells                             |             |              |  22226 |      684 | F            |                   |                  |                  |                |                |                |
|          3 |                              |                                                                                             |             |              |  22226 |    15453 | B            |                   |                  |                  |                |                |                |
|          4 |                              | BihdingaffjnityagainstA2xdenosinereceptirinbovinestriagakjwnfranec6sinrwHCGw21y80           |             |              | 104729 |    17841 | B            |                   |                  | Bos taurus       | 9913.0         |                |                |
|          5 |                              | Imvjtrocellcyt9tlxlv9tyagainst243BcelllinezHumshoste9sarcomacelloine                        |             |              |  80001 |    17430 | F            |                   |                  | Homo sapiens     | 9606.0         |                |                |
|          6 |                              | Invuhrocellsy4iyoxisityagainst243BcellligesHumanostekwafcomaceklline                        |             |              |  80001 |    17430 | F            |                   |                  | Homo sapiens     | 9606.0         |                |                |
|          7 |                              | C6totoxicActifi5ywasevao6atedqnaimst143BTKtunorcekls                                        |             |              |  80001 |    13799 | F            |                   |                  | Mus musculus     | 10090.0        |                |                |
|          8 |                              | jnvirdocellcygotoxjcitywaddeterh7nedagainst143gcelllih3                                     |             |              |  80001 |    17774 | F            |                   |                  | Homo sapiens     | 9606.0         |                |                |
|          9 |                              | Inhinitoryactibituava9bsgtujorostsosarcomzcwlllijew4eBafter72hrc8ntinuousedpocur4tocompound |             |              |  80001 |     3801 | F            |                   |                  | Homo sapiens     | 9606.0         |                |                |
|         10 |                              | Invitrocelocytotoxicityagainat242BigKcelllijesespe4seedinHSV1Tm                             |             |              |  80001 |    17430 | F            |                   |                  | Homo sapiens     | 9606.0         |                |                |

TableB:
|   ASI | ASSSUBCELFR   | Descri                                                                                                   | TISI   | VAI   |    Ti | ASSCTY   | RELAT   |   CONFISC | CUB          |   SRI | SASI   | CHI          | CI   | BAFO        |
|------:|:--------------|:---------------------------------------------------------------------------------------------------------|:-------|:------|------:|:---------|:--------|----------:|:-------------|------:|:-------|:-------------|:-----|:------------|
|  7524 |               | Biodistribution in normal rat kidney in the presence of 0.005 M Gd/0.01 M lig at 2 hr                    | 2113.0 |       | 50597 |          | N       |         1 | Intermediate |     1 |        | CHEMBL618647 |      | BAO_0000218 |
|  7525 |               | Biodistribution in normal rat kidney in the presence of 0.01 M Gd/0.05 M lig                             | 2113.0 |       | 50597 |          | N       |         1 | Intermediate |     1 |        | CHEMBL618648 |      | BAO_0000218 |
|  7526 |               | Biodistribution in normal rat kidney in the presence of NAC Gd 0.01 M lig at 2 hr                        | 2113.0 |       | 50597 |          | N       |         1 | Intermediate |     1 |        | CHEMBL618649 |      | BAO_0000218 |
|  7527 |               | Biodistribution in normal rat liver in the presence of 0.005 M Gd/0.01 M lig at 2 hr                     | 2107.0 |       | 50597 |          | N       |         1 | Intermediate |     1 |        | CHEMBL618650 |      | BAO_0000218 |
|  7528 |               | Biodistribution in normal rat liver in the presence of 0.01 M Gd/0.05 M lig                              | 2107.0 |       | 50597 |          | N       |         1 | Intermediate |     1 |        | CHEMBL618651 |      | BAO_0000218 |
|  7529 |               | Biodistribution in normal rat liver in the presence of NAC Gd 0.01 M lig at 2 hr                         | 2107.0 |       | 50597 |          | N       |         1 | Intermediate |     1 |        | CHEMBL876497 |      | BAO_0000218 |
|  7530 |               | Biodistribution in normal rat lung in the presence of 0.005 M Gd/0.01 M lig at 2 hr                      | 2048.0 |       | 50597 |          | N       |         1 | Intermediate |     1 |        | CHEMBL618652 |      | BAO_0000218 |
|  7531 |               | Biodistribution in normal rat lung in the presence of 0.01 M Gd/0.05 M lig                               | 2048.0 |       | 50597 |          | N       |         1 | Intermediate |     1 |        | CHEMBL618653 |      | BAO_0000218 |
|  7532 |               | Biodistribution in normal rat lung in the presence of NAC Gd 0.01 M lig at 2 hr                          | 2048.0 |       | 50597 |          | N       |         1 | Intermediate |     1 |        | CHEMBL618654 |      | BAO_0000218 |
|  7533 |               | Recovery rate from urine and bile was determined after iv administration at 20 mg/kg in rats; Not tested |        |       | 50597 |          | N       |         1 | Intermediate |     1 |        | CHEMBL618655 |      | BAO_0000218 |



source_headers: assay_id
assay_subcellular_fraction
description
tissue_id
variant_id
tid
target_headers: ASI
ASSSUBCELFR
Descri
TISI
VAI
Ti
column_mappings: assay_id
ASI
assay_subcellular_fraction
ASSSUBCELFR
description
Descri
tissue_id
TISI
variant_id
VAI
tid
Ti
output: {"column_mappings": [["assay_id", "ASI"], ["assay_subcellular_fraction", "ASSSUBCELFR"], ["description", "Descri"], ["tissue_id", "TISI"], ["variant_id", "VAI"], ["tid", "Ti"], ["doc_id", null], ["assay_type", null], ["assay_test_type", null], ["assay_category", null], ["assay_organism", null], ["assay_tax_id", null], ["assay_strain", null], ["assay_tissue", null]]}