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 |   src_id | assay_cell_type   |   confidence_score | assay_organism   | assay_test_type   | assay_category   | assay_tax_id   | tissue_id   | cell_id   | description                                                                                 | assay_tissue   | variant_id   | src_assay_id   | assay_subcellular_fraction   | bao_format   |   doc_id | assay_type   | assay_strain   |
|-----------:|---------:|:------------------|-------------------:|:-----------------|:------------------|:-----------------|:---------------|:------------|:----------|:--------------------------------------------------------------------------------------------|:---------------|:-------------|:---------------|:-----------------------------|:-------------|---------:|:-------------|:---------------|
|          1 |        1 |                   |                  8 |                  |                   |                  |                |             |           | Thecompoundwastwetedforthe8nvitroighubotolg9fplatsl2t12lipoxynensseataconsentrafionpf30uM   |                |              |                |                              | BA0000o019   |    11087 | B            |                |
|          2 |        1 |                   |                  0 |                  |                   |                  |                |             |           | Cok9oundwas2val8atedforitsabilut7tomobil9zwcalcoumun142wNIcells                             |                |              |                |                              | BAkp000219   |      684 | F            |                |
|          3 |        1 |                   |                  0 |                  |                   |                  |                |             |           |                                                                                             |                |              |                |                              | fqO0000019   |    15453 | B            |                |
|          4 |        1 |                   |                  4 | Bostaur7s        |                   |                  | 18336.0        |             |           | Bindiggaffinitgabajns5A2asen8sinereceptorinbovinectriztalnrmbranes7sinb3HCGSewu80           |                |              |                |                              | BAO0000er9   |    17841 | B            |                |
|          5 |        1 | 143B              |                  1 | Homksapidns      |                   |                  | 3019.0         |             | 1245.0    | Imgi4rocellcytotoxidifyabainst143fcelllinesH6manpsteosarcokacflli7ne                        |                |              |                |                              | BAl000o219   |    17430 | F            |                |
|          6 |        1 | 143B              |                  1 | Hohoswpiens      |                   |                  | 9111.0         |             | 751.0     | Invkfdoceklcutotoxicityagainx6143BceplilnesHumanosteosaeconacelllihe                        |                |              |                |                              | BAO900021p   |    17430 | F            |                |
|          7 |        1 | 143B              |                  1 | Musjusxulus      |                   |                  | 49807.0        |             | 230.0     | C7togpx9cqctivit7wxsevaluatedagainst144B6Ktum9rcells                                        |                |              |                |                              | BAO00oo219   |    13799 | F            |                |
|          8 |        1 | 143B              |                  1 | Homoeapiebs      |                   |                  | 28540.0        |             | 39.0      | Invitros4llc7totoxicigywasde4ermin3dagainst143vc3ppoine                                     |                |              |                |                              | vqO0000219   |    17774 | F            |                |
|          9 |        1 | 143B              |                  1 | Homocapiegs      |                   |                  | 18762.0        |             | 1221.0    | 7nuibitoryzctivktyagainsttjmk5osteoswrcomacelllihe14rBadter73hrcontinu8usexpps6re4ocom0ounx |                |              |                |                              | BApp000219   |     3801 | F            |                |
|         10 |        1 | 143B              |                  1 | Hokosaplens      |                   |                  | 54696.0        |             | 709.0     | Invit4oxellcytotoxid9tysgainst143BiTKselol7nesexpresaedinHzV15K                             |                |              |                |                              | fAO0000119   |    17430 | F            |                |

TableB:
|   assays_ss_d |   assays_src_d | assays_ss_cll_tp   |   assays_cnfdnc_scr | assays_ss_rgnsm   | assays_ss_tst_tp   | assays_ss_ctgr   |   assays_ss_tx_d | assays_tss_d   | assays_cll_d   | assays_dscrptn                                                                                           | assays_ss_tss   | assays_vrnt_d   | assays_src_ss_d   | assays_ss_sbclllr_frctn   | assays_b_frmt   |   assays_td | assays_rltnshp_tp   | assays_crtd_b   | assays_chmbl_d   |
|--------------:|---------------:|:-------------------|--------------------:|:------------------|:-------------------|:-----------------|-----------------:|:---------------|:---------------|:---------------------------------------------------------------------------------------------------------|:----------------|:----------------|:------------------|:--------------------------|:----------------|------------:|:--------------------|:----------------|:-----------------|
|          7524 |              1 |                    |                   1 | Rattus norvegicus | In vivo            |                  |            10116 | 2113.0         |                | Biodistribution in normal rat kidney in the presence of 0.005 M Gd/0.01 M lig at 2 hr                    | Kidney          |                 |                   |                           | BAO_0000218     |       50597 | N                   | Intermediate    | CHEMBL618647     |
|          7525 |              1 |                    |                   1 | Rattus norvegicus | In vivo            |                  |            10116 | 2113.0         |                | Biodistribution in normal rat kidney in the presence of 0.01 M Gd/0.05 M lig                             | Kidney          |                 |                   |                           | BAO_0000218     |       50597 | N                   | Intermediate    | CHEMBL618648     |
|          7526 |              1 |                    |                   1 | Rattus norvegicus | In vivo            |                  |            10116 | 2113.0         |                | Biodistribution in normal rat kidney in the presence of NAC Gd 0.01 M lig at 2 hr                        | Kidney          |                 |                   |                           | BAO_0000218     |       50597 | N                   | Intermediate    | CHEMBL618649     |
|          7527 |              1 |                    |                   1 | Rattus norvegicus | In vivo            |                  |            10116 | 2107.0         |                | Biodistribution in normal rat liver in the presence of 0.005 M Gd/0.01 M lig at 2 hr                     | Liver           |                 |                   |                           | BAO_0000218     |       50597 | N                   | Intermediate    | CHEMBL618650     |
|          7528 |              1 |                    |                   1 | Rattus norvegicus | In vivo            |                  |            10116 | 2107.0         |                | Biodistribution in normal rat liver in the presence of 0.01 M Gd/0.05 M lig                              | Liver           |                 |                   |                           | BAO_0000218     |       50597 | N                   | Intermediate    | CHEMBL618651     |
|          7529 |              1 |                    |                   1 | Rattus norvegicus | In vivo            |                  |            10116 | 2107.0         |                | Biodistribution in normal rat liver in the presence of NAC Gd 0.01 M lig at 2 hr                         | Liver           |                 |                   |                           | BAO_0000218     |       50597 | N                   | Intermediate    | CHEMBL876497     |
|          7530 |              1 |                    |                   1 | Rattus norvegicus | In vivo            |                  |            10116 | 2048.0         |                | Biodistribution in normal rat lung in the presence of 0.005 M Gd/0.01 M lig at 2 hr                      | Lung            |                 |                   |                           | BAO_0000218     |       50597 | N                   | Intermediate    | CHEMBL618652     |
|          7531 |              1 |                    |                   1 | Rattus norvegicus | In vivo            |                  |            10116 | 2048.0         |                | Biodistribution in normal rat lung in the presence of 0.01 M Gd/0.05 M lig                               | Lung            |                 |                   |                           | BAO_0000218     |       50597 | N                   | Intermediate    | CHEMBL618653     |
|          7532 |              1 |                    |                   1 | Rattus norvegicus | In vivo            |                  |            10116 | 2048.0         |                | Biodistribution in normal rat lung in the presence of NAC Gd 0.01 M lig at 2 hr                          | Lung            |                 |                   |                           | BAO_0000218     |       50597 | N                   | Intermediate    | CHEMBL618654     |
|          7533 |              1 |                    |                   1 | Rattus norvegicus |                    |                  |            10116 |                |                | Recovery rate from urine and bile was determined after iv administration at 20 mg/kg in rats; Not tested |                 |                 |                   |                           | BAO_0000218     |       50597 | N                   | Intermediate    | CHEMBL618655     |



source_headers: assay_id
src_id
assay_cell_type
confidence_score
assay_organism
assay_test_type
assay_category
assay_tax_id
tissue_id
cell_id
description
assay_tissue
variant_id
src_assay_id
assay_subcellular_fraction
bao_format
target_headers: assays_ss_d
assays_src_d
assays_ss_cll_tp
assays_cnfdnc_scr
assays_ss_rgnsm
assays_ss_tst_tp
assays_ss_ctgr
assays_ss_tx_d
assays_tss_d
assays_cll_d
assays_dscrptn
assays_ss_tss
assays_vrnt_d
assays_src_ss_d
assays_ss_sbclllr_frctn
assays_b_frmt
column_mappings: assay_id
assays_ss_d
src_id
assays_src_d
assay_cell_type
assays_ss_cll_tp
confidence_score
assays_cnfdnc_scr
assay_organism
assays_ss_rgnsm
assay_test_type
assays_ss_tst_tp
assay_category
assays_ss_ctgr
assay_tax_id
assays_ss_tx_d
tissue_id
assays_tss_d
cell_id
assays_cll_d
description
assays_dscrptn
assay_tissue
assays_ss_tss
variant_id
assays_vrnt_d
src_assay_id
assays_src_ss_d
assay_subcellular_fraction
assays_ss_sbclllr_frctn
bao_format
assays_b_frmt
output: {"column_mappings": [["assay_id", "assays_ss_d"], ["src_id", "assays_src_d"], ["assay_cell_type", "assays_ss_cll_tp"], ["confidence_score", "assays_cnfdnc_scr"], ["assay_organism", "assays_ss_rgnsm"], ["assay_test_type", "assays_ss_tst_tp"], ["assay_category", "assays_ss_ctgr"], ["assay_tax_id", "assays_ss_tx_d"], ["tissue_id", "assays_tss_d"], ["cell_id", "assays_cll_d"], ["description", "assays_dscrptn"], ["assay_tissue", "assays_ss_tss"], ["variant_id", "assays_vrnt_d"], ["src_assay_id", "assays_src_ss_d"], ["assay_subcellular_fraction", "assays_ss_sbclllr_frctn"], ["bao_format", "assays_b_frmt"], ["doc_id", null], ["assay_type", null], ["assay_strain", null]]}