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_test_type   | assay_subcellular_fraction   | cell_id   | assay_type   |   doc_id | bao_format   | curated_by   | assay_strain   | assay_tissue   | description                                                                                                 | assay_category   | assay_organism   | assay_tax_id   | assay_cell_type   |    tid |
|-----------:|---------:|:------------------|:-----------------------------|:----------|:-------------|---------:|:-------------|:-------------|:---------------|:---------------|:------------------------------------------------------------------------------------------------------------|:-----------------|:-----------------|:---------------|:------------------|-------:|
|          1 |        1 |                   |                              |           | B            |    11087 | hAO000o019   | Auyocuratiln |                |                | The compound was tested for the in vitro inhibition of platelet 12-lipoxygenase at a concentration of 30 uM |                  |                  |                |                   |  12052 |
|          2 |        1 |                   |                              |           | F            |      684 | BzO000o219   | Autosurati9n |                |                | Compound was evaluated for its ability to mobilize calcium in 1321NI cells                                  |                  |                  |                |                   |  22226 |
|          3 |        1 |                   |                              |           | B            |    15453 | BAO0pp0019   | qu5ocuration |                |                |                                                                                                             |                  |                  |                |                   |  22226 |
|          4 |        1 |                   |                              |           | B            |    17841 | BAOo00o249   | Autocurat9in |                |                | Binding affinity against A2 adenosine receptor in bovine striatal membranes using [3H]CGS-21680             |                  | Bos taurus       | 9913.0         |                   | 104729 |
|          5 |        1 |                   |                              | 195.0     | F            |    17430 | BAOo000119   | Intermedlxte |                |                | In vitro cell cytotoxicity against 143-B cell lines (Human osteosarcoma cell line)                          |                  | Homo sapiens     | 9606.0         | 143B              |  80001 |
|          6 |        1 |                   |                              | 180.0     | F            |    17430 | BAO00p0w19   | Intermedia6d |                |                | In vitro cell cytotoxicity against 143-B cell lines (Human osteosarcoma cell line)                          |                  | Homo sapiens     | 9606.0         | 143B              |  80001 |
|          7 |        1 |                   |                              | 241.0     | F            |    13799 | BAO00002qo   | Internediatr |                |                | Cytotoxic Activity was evaluated against 143B (TK-) tumor cells                                             |                  | Mus musculus     | 10090.0        | 143B              |  80001 |
|          8 |        1 |                   |                              | 292.0     | F            |    17774 | BwO0000218   | Expe3t       |                |                | In vitro cell cytotoxicity was determined against 143B cell line                                            |                  | Homo sapiens     | 9606.0         | 143B              |  80001 |
|          9 |        1 |                   |                              | 254.0     | F            |     3801 | BxO0000319   | Intermsviate |                |                | Inhibitory activity against tumor osteosarcoma cell line 143B after 72 hr continuous exposure to compound   |                  | Homo sapiens     | 9606.0         | 143B              |  80001 |
|         10 |        1 |                   |                              | 411.0     | F            |    17430 | BzOp000219   | Inte4med8ate |                |                | In vitro cell cytotoxicity against 143B-LTK cell lines expressed in HSV-1 TK                                |                  | Homo sapiens     | 9606.0         | 143B              |  80001 |

TableB:
|   ss_d |   src_d | ss_tst_tp   | ss_sbclllr_frctn   | cll_d   | ss_tp   |   dc_d | b_frmt      | crtd_b       | ss_strn   | ss_tss   | rltnshp_tp   |   cnfdnc_scr | src_ss_d   | chmbl_d      | tss_d   | vrnt_d   |
|-------:|--------:|:------------|:-------------------|:--------|:--------|-------:|:------------|:-------------|:----------|:---------|:-------------|-------------:|:-----------|:-------------|:--------|:---------|
|   7524 |       1 | In vivo     |                    |         | A       |   9866 | BAO_0000218 | Intermediate |           | Kidney   | N            |            1 |            | CHEMBL618647 | 2113.0  |          |
|   7525 |       1 | In vivo     |                    |         | A       |   9866 | BAO_0000218 | Intermediate |           | Kidney   | N            |            1 |            | CHEMBL618648 | 2113.0  |          |
|   7526 |       1 | In vivo     |                    |         | A       |   9866 | BAO_0000218 | Intermediate |           | Kidney   | N            |            1 |            | CHEMBL618649 | 2113.0  |          |
|   7527 |       1 | In vivo     |                    |         | A       |   9866 | BAO_0000218 | Intermediate |           | Liver    | N            |            1 |            | CHEMBL618650 | 2107.0  |          |
|   7528 |       1 | In vivo     |                    |         | A       |   9866 | BAO_0000218 | Intermediate |           | Liver    | N            |            1 |            | CHEMBL618651 | 2107.0  |          |
|   7529 |       1 | In vivo     |                    |         | A       |   9866 | BAO_0000218 | Intermediate |           | Liver    | N            |            1 |            | CHEMBL876497 | 2107.0  |          |
|   7530 |       1 | In vivo     |                    |         | A       |   9866 | BAO_0000218 | Intermediate |           | Lung     | N            |            1 |            | CHEMBL618652 | 2048.0  |          |
|   7531 |       1 | In vivo     |                    |         | A       |   9866 | BAO_0000218 | Intermediate |           | Lung     | N            |            1 |            | CHEMBL618653 | 2048.0  |          |
|   7532 |       1 | In vivo     |                    |         | A       |   9866 | BAO_0000218 | Intermediate |           | Lung     | N            |            1 |            | CHEMBL618654 | 2048.0  |          |
|   7533 |       1 |             |                    |         | A       |   6351 | BAO_0000218 | Intermediate |           |          | N            |            1 |            | CHEMBL618655 |         |          |



source_headers: assay_id
src_id
assay_test_type
assay_subcellular_fraction
cell_id
assay_type
doc_id
bao_format
curated_by
assay_strain
assay_tissue
target_headers: ss_d
src_d
ss_tst_tp
ss_sbclllr_frctn
cll_d
ss_tp
dc_d
b_frmt
crtd_b
ss_strn
ss_tss
column_mappings: assay_id
ss_d
src_id
src_d
assay_test_type
ss_tst_tp
assay_subcellular_fraction
ss_sbclllr_frctn
cell_id
cll_d
assay_type
ss_tp
doc_id
dc_d
bao_format
b_frmt
curated_by
crtd_b
assay_strain
ss_strn
assay_tissue
ss_tss
output: {"column_mappings": [["assay_id", "ss_d"], ["src_id", "src_d"], ["assay_test_type", "ss_tst_tp"], ["assay_subcellular_fraction", "ss_sbclllr_frctn"], ["cell_id", "cll_d"], ["assay_type", "ss_tp"], ["doc_id", "dc_d"], ["bao_format", "b_frmt"], ["curated_by", "crtd_b"], ["assay_strain", "ss_strn"], ["assay_tissue", "ss_tss"], ["description", null], ["assay_category", null], ["assay_organism", null], ["assay_tax_id", null], ["assay_cell_type", null], ["tid", null]]}