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 | curated_by   | assay_organism   | variant_id   | assay_strain   |   doc_id | assay_category   | assay_test_type   | assay_subcellular_fraction   |    tid | assay_type   | description                                                                                                 | assay_tax_id   | assay_tissue   | assay_cell_type   | relationship_type   |   confidence_score |
|-----------:|:-------------|:-----------------|:-------------|:---------------|---------:|:-----------------|:------------------|:-----------------------------|-------:|:-------------|:------------------------------------------------------------------------------------------------------------|:---------------|:---------------|:------------------|:--------------------|-------------------:|
|          1 | Auyochration |                  |              |                |    11087 |                  |                   |                              |  12052 | B            | The compound was tested for the in vitro inhibition of platelet 12-lipoxygenase at a concentration of 30 uM |                |                |                   | H                   |                  8 |
|          2 | Au4ocutation |                  |              |                |      684 |                  |                   |                              |  22226 | F            | Compound was evaluated for its ability to mobilize calcium in 1321NI cells                                  |                |                |                   | U                   |                  0 |
|          3 | Autkcu3ation |                  |              |                |    15453 |                  |                   |                              |  22226 | B            |                                                                                                             |                |                |                   | U                   |                  0 |
|          4 | wutocutation | Bosta6rus        |              |                |    17841 |                  |                   |                              | 104729 | B            | Binding affinity against A2 adenosine receptor in bovine striatal membranes using [3H]CGS-21680             | 9913.0         |                |                   | H                   |                  4 |
|          5 | Intermedistf | H8nosapiens      |              |                |    17430 |                  |                   |                              |  80001 | F            | In vitro cell cytotoxicity against 143-B cell lines (Human osteosarcoma cell line)                          | 9606.0         |                | 143B              | N                   |                  1 |
|          6 | untermediatd | Homosa9i3ns      |              |                |    17430 |                  |                   |                              |  80001 | F            | In vitro cell cytotoxicity against 143-B cell lines (Human osteosarcoma cell line)                          | 9606.0         |                | 143B              | N                   |                  1 |
|          7 | Intermediay3 | Musmusculkc      |              |                |    13799 |                  |                   |                              |  80001 | F            | Cytotoxic Activity was evaluated against 143B (TK-) tumor cells                                             | 10090.0        |                | 143B              | N                   |                  1 |
|          8 | Exper5       | Homoszoiens      |              |                |    17774 |                  |                   |                              |  80001 | F            | In vitro cell cytotoxicity was determined against 143B cell line                                            | 9606.0         |                | 143B              | N                   |                  1 |
|          9 | Ibterjediate | Homlsaplens      |              |                |     3801 |                  |                   |                              |  80001 | F            | Inhibitory activity against tumor osteosarcoma cell line 143B after 72 hr continuous exposure to compound   | 9606.0         |                | 143B              | N                   |                  1 |
|         10 | 8nterjediate | monosapiens      |              |                |    17430 |                  |                   |                              |  80001 | F            | In vitro cell cytotoxicity against 143B-LTK cell lines expressed in HSV-1 TK                                | 9606.0         |                | 143B              | N                   |                  1 |

TableB:
|   assays_ASSI | assays_CURB   | assays_ASORGA     | assays_VARI   | assays_ASSSTR   |   assays_DI | assays_ASSCAT   | assays_ASSTTY   | assays_ASSUBCELFRA   |   assays_T | assays_AST   |   assays_SRI | assays_SRASI   | assays_CHEI   | assays_CI   | assays_BAFO   | assays_TII   |
|--------------:|:--------------|:------------------|:--------------|:----------------|------------:|:----------------|:----------------|:---------------------|-----------:|:-------------|-------------:|:---------------|:--------------|:------------|:--------------|:-------------|
|          7524 | Intermediate  | Rattus norvegicus |               |                 |        9866 |                 | In vivo         |                      |      50597 | A            |            1 |                | CHEMBL618647  |             | BAO_0000218   | 2113.0       |
|          7525 | Intermediate  | Rattus norvegicus |               |                 |        9866 |                 | In vivo         |                      |      50597 | A            |            1 |                | CHEMBL618648  |             | BAO_0000218   | 2113.0       |
|          7526 | Intermediate  | Rattus norvegicus |               |                 |        9866 |                 | In vivo         |                      |      50597 | A            |            1 |                | CHEMBL618649  |             | BAO_0000218   | 2113.0       |
|          7527 | Intermediate  | Rattus norvegicus |               |                 |        9866 |                 | In vivo         |                      |      50597 | A            |            1 |                | CHEMBL618650  |             | BAO_0000218   | 2107.0       |
|          7528 | Intermediate  | Rattus norvegicus |               |                 |        9866 |                 | In vivo         |                      |      50597 | A            |            1 |                | CHEMBL618651  |             | BAO_0000218   | 2107.0       |
|          7529 | Intermediate  | Rattus norvegicus |               |                 |        9866 |                 | In vivo         |                      |      50597 | A            |            1 |                | CHEMBL876497  |             | BAO_0000218   | 2107.0       |
|          7530 | Intermediate  | Rattus norvegicus |               |                 |        9866 |                 | In vivo         |                      |      50597 | A            |            1 |                | CHEMBL618652  |             | BAO_0000218   | 2048.0       |
|          7531 | Intermediate  | Rattus norvegicus |               |                 |        9866 |                 | In vivo         |                      |      50597 | A            |            1 |                | CHEMBL618653  |             | BAO_0000218   | 2048.0       |
|          7532 | Intermediate  | Rattus norvegicus |               |                 |        9866 |                 | In vivo         |                      |      50597 | A            |            1 |                | CHEMBL618654  |             | BAO_0000218   | 2048.0       |
|          7533 | Intermediate  | Rattus norvegicus |               |                 |        6351 |                 |                 |                      |      50597 | A            |            1 |                | CHEMBL618655  |             | BAO_0000218   |              |



source_headers: assay_id
curated_by
assay_organism
variant_id
assay_strain
doc_id
assay_category
assay_test_type
assay_subcellular_fraction
tid
assay_type
target_headers: assays_ASSI
assays_CURB
assays_ASORGA
assays_VARI
assays_ASSSTR
assays_DI
assays_ASSCAT
assays_ASSTTY
assays_ASSUBCELFRA
assays_T
assays_AST
column_mappings: assay_id
assays_ASSI
curated_by
assays_CURB
assay_organism
assays_ASORGA
variant_id
assays_VARI
assay_strain
assays_ASSSTR
doc_id
assays_DI
assay_category
assays_ASSCAT
assay_test_type
assays_ASSTTY
assay_subcellular_fraction
assays_ASSUBCELFRA
tid
assays_T
assay_type
assays_AST
output: {"column_mappings": [["assay_id", "assays_ASSI"], ["curated_by", "assays_CURB"], ["assay_organism", "assays_ASORGA"], ["variant_id", "assays_VARI"], ["assay_strain", "assays_ASSSTR"], ["doc_id", "assays_DI"], ["assay_category", "assays_ASSCAT"], ["assay_test_type", "assays_ASSTTY"], ["assay_subcellular_fraction", "assays_ASSUBCELFRA"], ["tid", "assays_T"], ["assay_type", "assays_AST"], ["description", null], ["assay_tax_id", null], ["assay_tissue", null], ["assay_cell_type", null], ["relationship_type", null], ["confidence_score", null]]}