Task: Schema-Matching (source dataset: Wikidata)

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:
| musician                             | birthDate            | familyNameLabel   | givenNameLabel   | numberOfChildren   | websiteLabel                        | residenceLabel   | ethnicityLabel    | religionLabel       | activityStart        | twitterNameLabel   | geniusNameLabel   | recordLabelLabel      |
|:-------------------------------------|:---------------------|:------------------|:-----------------|:-------------------|:------------------------------------|:-----------------|:------------------|:--------------------|:---------------------|:-------------------|:------------------|:----------------------|
| http://www.wikidata.org/entity/Q6096 | 1971-10-20T00:00:00Z | Broadus           | Cordozar         | 4                  | http://snoopdogg.com/               |                  | African Americans | Islam               | 1991-01-01T00:00:00Z | snoopdogg          | Snoop-dogg        | Death Row Records     |
| http://www.wikidata.org/entity/Q5977 | 1936-09-07T00:00:00Z | Holley            | Hardin           |                    | http://www.buddyholly.com           |                  |                   | Baptists            | 1952-01-01T00:00:00Z |                    | Buddy-holly       | Brunswick             |
| http://www.wikidata.org/entity/Q8349 | 1959-10-23T00:00:00Z | Yankovic          | Alfred           |                    | http://weirdal.com/                 |                  |                   | Christianity        | 1976-01-01T00:00:00Z | alyankovic         | Weird-al-yankovic | Volcano Entertainment |
| http://www.wikidata.org/entity/Q1779 | 1901-08-04T00:00:00Z | Armstrong         | Louis            |                    | http://www.louisarmstronghouse.org/ |                  | African Americans |                     | 1914-01-01T00:00:00Z |                    |                   | Decca                 |
| http://www.wikidata.org/entity/Q4270 | 1975-12-13T00:00:00Z | Delonge           | Thomas           |                    | http://blink-182.com/               | Del Mar          |                   |                     | 1992-01-01T00:00:00Z | tomdelonge         | Tom-delonge       | DGC Records           |
| http://www.wikidata.org/entity/Q4491 | 1976-11-29T00:00:00Z | Faris             | Anna             | 1                  |                                     | Los Angeles      |                   |                     | 1991-01-01T00:00:00Z | AnnaKFaris         | Anna-faris        |                       |
| http://www.wikidata.org/entity/Q6107 | 1971-06-16T00:00:00Z | Shakur            | Tupac            |                    | http://www.2pac.com                 | Las Vegas        | African Americans |                     | 1989-01-01T00:00:00Z | 2pac               | 2pac              | Death Row Records     |
| http://www.wikidata.org/entity/Q633  | 1945-11-12T00:00:00Z | Young             | Percival         |                    | http://www.neilyoungarchives.com/   | Toronto          |                   |                     | 1961-01-01T00:00:00Z | Neilyoung          |                   | Warner Bros. Records  |
| http://www.wikidata.org/entity/Q7542 | 1958-06-07T00:00:00Z | Nelson            | Rogers           |                    | https://www.princeestate.com/       | Chanhassen       | African Americans | Jehovah's Witnesses | 1978-01-01T00:00:00Z | prince             | Prince            | Arista                |
| http://www.wikidata.org/entity/Q714  | 1950-05-13T00:00:00Z | Morris            | Stevland         |                    | http://www.steviewonder.net         |                  | African Americans |                     | 1961-01-01T00:00:00Z |                    | Stevie-wonder     | Motown                |

TableB:
| musicianID                              | musicianName   | genderType   | birthDate            | city          | familyName   | forename   | fatherName   | motherName   | spouse   | NChildren   | kind             | webpage                       |
|:----------------------------------------|:---------------|:-------------|:---------------------|:--------------|:-------------|:-----------|:-------------|:-------------|:---------|:------------|:-----------------|:------------------------------|
| http://www.wikidata.org/entity/Q3017926 |                | m            | 1938-08-24T00:00:00Z | Cincinnati    |              | David      |              |              |          |             | rock music       |                               |
| http://www.wikidata.org/entity/Q2923750 |                | m            | 1962-05-28T00:00:00Z | Bakersfield   | Cruz         | Brandon    |              |              |          |             |                  |                               |
| http://www.wikidata.org/entity/Q3020857 |                | f            | 1965-08-13T00:00:00Z | Sacramento    |              | Deborah    |              |              | RDJ      |             |                  |                               |
| http://www.wikidata.org/entity/Q3027902 |                | m            | 1989-09-17T00:00:00Z | Los Angeles   |              |            |              |              |          |             |                  |                               |
| http://www.wikidata.org/entity/Q2967586 |                | m            | 1936-08-22T00:00:00Z | Gaston        | Brown        | Chuck      |              |              |          |             | go-go            | http://www.windmeupchuck.com/ |
| http://www.wikidata.org/entity/Q2979859 |                | f            | 1988-05-07T00:00:00Z | West Covina   |              | Natalie    |              |              |          |             | popular music    |                               |
| http://www.wikidata.org/entity/Q2940906 | Case Woodard   | m            | 1975-10-04T00:00:00Z | New York City |              |            |              |              |          |             | contemporary R&B |                               |
| http://www.wikidata.org/entity/Q2927234 |                | m            | 1986-08-17T00:00:00Z | Lakewood      | James        |            |              |              |          |             |                  |                               |
| http://www.wikidata.org/entity/Q2927252 |                | m            | 1924-12-10T00:00:00Z | Woodbury      | Albers       | Ken        |              |              |          |             | popular music    |                               |
| http://www.wikidata.org/entity/Q3015280 | Daniel Mann    | m            | 1951-07-28T00:00:00Z | Tennessee     | Mann         | Danny      |              |              |          |             |                  |                               |



source_headers: musician
birthDate
familyNameLabel
givenName
numberOfChildren
websiteLabel
target_headers: musicianID
birthDate
familyName
forename
NChildren
webpage
column_mappings: musician
musicianID
birthDate
birthDate
familyNameLabel
familyName
givenName
forename
numberOfChildren
NChildren
websiteLabel
webpage
output: {"column_mappings": [["musician", "musicianID"], ["birthDate", "birthDate"], ["familyNameLabel", "familyName"], ["givenNameLabel", null], ["numberOfChildren", "NChildren"], ["websiteLabel", "webpage"], ["residenceLabel", null], ["ethnicityLabel", null], ["religionLabel", null], ["activityStart", null], ["twitterNameLabel", null], ["geniusNameLabel", null], ["recordLabelLabel", null]]}