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_organism   | assay_subcellular_fraction   |   confidence_score | assay_cell_type   | variant_id   | assay_test_type   | relationship_type   | assay_tissue   | assay_type   | description                                                                                 |   doc_id | curated_by   | assay_category   | bao_format   | cell_id   | assay_tax_id   | assay_strain   |    tid |
|-----------:|:-----------------|:-----------------------------|-------------------:|:------------------|:-------------|:------------------|:--------------------|:---------------|:-------------|:--------------------------------------------------------------------------------------------|---------:|:-------------|:-----------------|:-------------|:----------|:---------------|:---------------|-------:|
|          1 |                  |                              |                  8 |                   |              |                   | H                   |                | B            | Tbeckmpoundwast2etexfo3theinviyroinjibutionofplatelet12lipocufwnaseatacobc4ntratipbof30uM   |    11087 | Autocuratuin |                  | nA00000019   |           |                |                |  12052 |
|          2 |                  |                              |                  0 |                   |              |                   | U                   |                | F            | Cojpoundwasevaluatevfo4itsab9lifytomobilizesxpcouminw32qNIcelos                             |      684 | Augocurat9on |                  | BxO0000w19   |           |                |                |  22226 |
|          3 |                  |                              |                  0 |                   |              |                   | U                   |                | B            |                                                                                             |    15453 | Autocjratiog |                  | BA900000q9   |           |                |                |  22226 |
|          4 | Bostautus        |                              |                  4 |                   |              |                   | H                   |                | B            | BindjnfadeihitysgainstAwadenosobr5eceptironbovinesteiz5almembranesusing3HCGS21680           |    17841 | Autocjratiom |                  | BAOp000248   |           | 9913.0         |                | 104729 |
|          5 | Homoswpkens      |                              |                  1 | 143B              |              |                   | N                   |                | F            | Invitrocellcytotoxlc8tyayainxt143BcsollimesHuhanosteksarcomzceillijs                        |    17430 | Integmedoate |                  | BAOo000w19   | 526.0     | 9606.0         |                |  80001 |
|          6 | Homksapiejs      |                              |                  1 | 143B              |              |                   | N                   |                | F            | 8nvi6tocellcgtitoxisityagainst143BcelliinesHukanosteosa5comxceplluje                        |    17430 | Intermrdlate |                  | fqO0000219   | 868.0     | 9606.0         |                |  80001 |
|          7 | M7smksculus      |                              |                  1 | 143B              |              |                   | N                   |                | F            | vytotoxicAstivitywasevaluat4dava7nst142BTlyumorceolx                                        |    13799 | Intermevixte |                  | BAO0900e19   | 443.0     | 10090.0        |                |  80001 |
|          8 | Homosapisjs      |                              |                  1 | 143B              |              |                   | N                   |                | F            | Inviyroceplct606ox7citywasdetermunedagainst14rBcellkkne                                     |    17774 | Exlert       |                  | BAO0p00119   | 1100.0    | 9606.0         |                |  80001 |
|          9 | Hohpsapiens      |                              |                  1 | 143B              |              |                   | N                   |                | F            | 7nh9bitoryac4ivittagainsttuklrosgeossrcomaselll7new43Bafger73hrcobtinuousexpoxugetofompounv |     3801 | Intedmexiate |                  | BqO0000q19   | 608.0     | 9606.0         |                |  80001 |
|         10 | Homisapi4ns      |                              |                  1 | 143B              |              |                   | N                   |                | F            | Invitroceoicytotoxicigyagaigsh143BpTKcelllinesexpresxed8buSgqTK                             |    17430 | Intermefiafe |                  | BAk9000219   | 555.0     | 9606.0         |                |  80001 |

TableB:
|   ASSI | ASSORGA           | ASSSUBCEFRA   |   CONFSCO | ASCET   | VARII   | ASSTTY   | RELAT   | ASTIS   | ASTY   | Descr                                                                                                    |   DOI | CURAB        | ASCA   | BAFOR       | CEI   |   SRI | SRASSI   | CHI          | TII    |
|-------:|:------------------|:--------------|----------:|:--------|:--------|:---------|:--------|:--------|:-------|:---------------------------------------------------------------------------------------------------------|------:|:-------------|:-------|:------------|:------|------:|:---------|:-------------|:-------|
|   7524 | Rattus norvegicus |               |         1 |         |         | In vivo  | N       | Kidney  | A      | Biodistribution in normal rat kidney in the presence of 0.005 M Gd/0.01 M lig at 2 hr                    |  9866 | Intermediate |        | BAO_0000218 |       |     1 |          | CHEMBL618647 | 2113.0 |
|   7525 | Rattus norvegicus |               |         1 |         |         | In vivo  | N       | Kidney  | A      | Biodistribution in normal rat kidney in the presence of 0.01 M Gd/0.05 M lig                             |  9866 | Intermediate |        | BAO_0000218 |       |     1 |          | CHEMBL618648 | 2113.0 |
|   7526 | Rattus norvegicus |               |         1 |         |         | In vivo  | N       | Kidney  | A      | Biodistribution in normal rat kidney in the presence of NAC Gd 0.01 M lig at 2 hr                        |  9866 | Intermediate |        | BAO_0000218 |       |     1 |          | CHEMBL618649 | 2113.0 |
|   7527 | Rattus norvegicus |               |         1 |         |         | In vivo  | N       | Liver   | A      | Biodistribution in normal rat liver in the presence of 0.005 M Gd/0.01 M lig at 2 hr                     |  9866 | Intermediate |        | BAO_0000218 |       |     1 |          | CHEMBL618650 | 2107.0 |
|   7528 | Rattus norvegicus |               |         1 |         |         | In vivo  | N       | Liver   | A      | Biodistribution in normal rat liver in the presence of 0.01 M Gd/0.05 M lig                              |  9866 | Intermediate |        | BAO_0000218 |       |     1 |          | CHEMBL618651 | 2107.0 |
|   7529 | Rattus norvegicus |               |         1 |         |         | In vivo  | N       | Liver   | A      | Biodistribution in normal rat liver in the presence of NAC Gd 0.01 M lig at 2 hr                         |  9866 | Intermediate |        | BAO_0000218 |       |     1 |          | CHEMBL876497 | 2107.0 |
|   7530 | Rattus norvegicus |               |         1 |         |         | In vivo  | N       | Lung    | A      | Biodistribution in normal rat lung in the presence of 0.005 M Gd/0.01 M lig at 2 hr                      |  9866 | Intermediate |        | BAO_0000218 |       |     1 |          | CHEMBL618652 | 2048.0 |
|   7531 | Rattus norvegicus |               |         1 |         |         | In vivo  | N       | Lung    | A      | Biodistribution in normal rat lung in the presence of 0.01 M Gd/0.05 M lig                               |  9866 | Intermediate |        | BAO_0000218 |       |     1 |          | CHEMBL618653 | 2048.0 |
|   7532 | Rattus norvegicus |               |         1 |         |         | In vivo  | N       | Lung    | A      | Biodistribution in normal rat lung in the presence of NAC Gd 0.01 M lig at 2 hr                          |  9866 | Intermediate |        | BAO_0000218 |       |     1 |          | CHEMBL618654 | 2048.0 |
|   7533 | Rattus norvegicus |               |         1 |         |         |          | N       |         | A      | Recovery rate from urine and bile was determined after iv administration at 20 mg/kg in rats; Not tested |  6351 | Intermediate |        | BAO_0000218 |       |     1 |          | CHEMBL618655 |        |



source_headers: assay_id
assay_organism
assay_subcellular_fraction
confidence_score
assay_cell_type
variant_id
assay_test_type
relationship_type
assay_tissue
assay_type
description
doc_id
curated_by
assay_category
bao_format
cell_id
target_headers: ASSI
ASSORGA
ASSSUBCEFRA
CONFSCO
ASCET
VARII
ASSTTY
RELAT
ASTIS
ASTY
Descr
DOI
CURAB
ASCA
BAFOR
CEI
column_mappings: assay_id
ASSI
assay_organism
ASSORGA
assay_subcellular_fraction
ASSSUBCEFRA
confidence_score
CONFSCO
assay_cell_type
ASCET
variant_id
VARII
assay_test_type
ASSTTY
relationship_type
RELAT
assay_tissue
ASTIS
assay_type
ASTY
description
Descr
doc_id
DOI
curated_by
CURAB
assay_category
ASCA
bao_format
BAFOR
cell_id
CEI
output: {"column_mappings": [["assay_id", "ASSI"], ["assay_organism", "ASSORGA"], ["assay_subcellular_fraction", "ASSSUBCEFRA"], ["confidence_score", "CONFSCO"], ["assay_cell_type", "ASCET"], ["variant_id", "VARII"], ["assay_test_type", "ASSTTY"], ["relationship_type", "RELAT"], ["assay_tissue", "ASTIS"], ["assay_type", "ASTY"], ["description", "Descr"], ["doc_id", "DOI"], ["curated_by", "CURAB"], ["assay_category", "ASCA"], ["bao_format", "BAFOR"], ["cell_id", "CEI"], ["assay_tax_id", null], ["assay_strain", null], ["tid", null]]}