Task: Schema-Matching (source dataset: DeepMDatasets)

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:
| id   | title                                                                      | manufacturer              | price   |
|:-----|:---------------------------------------------------------------------------|:--------------------------|:--------|
| id   | title                                                                      | manufacturer              | price   |
| 0    | clickart 950 000 premier image pack ( dvd-rom )                            | broderbund                |         |
| 1    | ca international arcserve lap/desktop oem 30pk                             | computer associates       |         |
| 2    | noah 's ark activity center ( jewel case ages 3-8 )                        | victory multimedia        |         |
| 3    | peachtree by sage premium accounting for nonprofits 2007                   | sage software             | 599.99  |
| 4    | singing coach unlimited                                                    | carry-a-tune technologies | 99.99   |
| 5    | emc retrospect 7.5 disk to disk windows                                    | dantz                     |         |
| 6    | adobe after effects professional 6.5 upgrade from standard to professional | adobe                     | 499.99  |
| 7    | acad upgrade dragon naturallyspeaking pro solution 9.0 ( a289a-fd7-9 .0 )  | nuance academic           | 399.54  |
| 8    | mia 's math adventure : just in time                                       | kutoka                    | 19.99   |

TableB:
|   id | title                                                       | manufacturer           |   price |
|-----:|:------------------------------------------------------------|:-----------------------|--------:|
|    0 | learning quickbooks 2007                                    | intuit                 |   38.99 |
|    1 | superstart ! fun with reading & writing !                   |                        |    8.49 |
|    2 | qb pos 6.0 basic software                                   | intuit                 |  637.99 |
|    3 | math missions : the amazing arcade adventure ( grades 3-5 ) |                        |   12.95 |
|    4 | production prem cs3 mac upgrad                              | adobe software         |  805.99 |
|    5 | video studio 11 plus                                        | corel corporation      |  103.99 |
|    6 | edius pro 4                                                 | canopus/grass valley   |  585.99 |
|    7 | qb pos 6.0 pro multi store sw                               | intuit                 | 1054.99 |
|    8 | qb credit card kit 3.0                                      | intuit                 |   25.99 |
|    9 | vegas movie studiodvd +8 plat                               | sony creative software |   92.99 |



source_headers: id
title
manufacturer
price
target_headers: id
title
manufacturer
price
column_mappings: id
id
title
title
manufacturer
manufacturer
price
price
output: {"column_mappings": [["id", "id"], ["title", "title"], ["manufacturer", "manufacturer"], ["price", "price"]]}