Task: Data-Imputation (source dataset: tablib)

Please fill in the missing value in the input table. The missing value is denoted by '[MISSING]'. Please only return the value filled in. Do not return the whole table.

No explanation, return the value filled in JSON format: {"value": "filled_value"}. 

Input Table:
| Name                | Position                      | Office        | Age       | Start date   | Salary     |
|:--------------------|:------------------------------|:--------------|:----------|:-------------|:-----------|
| Tiger Nixon         | System Architect              | Edinburgh     | 61        | 2011/04/25   | $320,800   |
| Garrett Winters     | Accountant                    | Tokyo         | 63        | 2011/07/25   | $170,750   |
| Ashton Cox          | Junior Technical Author       | San Francisco | 66        | 2009/01/12   | $86,000    |
| Cedric Kelly        | Senior Javascript Developer   | Edinburgh     | 22        | 2012/03/29   | $433,060   |
| Airi Satou          | Accountant                    | Tokyo         | 33        | 2008/11/28   | $162,700   |
| Brielle Williamson  | Integration Specialist        | New York      | 61        | 2012/12/02   | $372,000   |
| Herrod Chandler     | Sales Assistant               | San Francisco | 59        | 2012/08/06   | $137,500   |
| Rhona Davidson      | Integration Specialist        | Tokyo         | 55        | 2010/10/14   | $327,900   |
| Colleen Hurst       | Javascript Developer          | San Francisco | 39        | 2009/09/15   | $205,500   |
| Sonya Frost         | Software Engineer             | Edinburgh     | 23        | 2008/12/13   | $103,600   |
| Jena Gaines         | Office Manager                | London        | 30        | 2008/12/19   | $90,560    |
| Quinn Flynn         | Support Lead                  | Edinburgh     | 22        | 2013/03/03   | $342,000   |
| Charde Marshall     | Regional Director             | San Francisco | 36        | 2008/10/16   | $470,600   |
| Haley Kennedy       | Senior Marketing Designer     | London        | 43        | 2012/12/18   | $313,500   |
| Tatyana Fitzpatrick | Regional Director             | London        | 19        | 2010/03/17   | $385,750   |
| Michael Silva       | Marketing Designer            | London        | 66        | 2012/11/27   | $198,500   |
| Paul Byrd           | Chief Financial Officer (CFO) | New York      | 64        | 2010/06/09   | $725,000   |
| Gloria Little       | Systems Administrator         | New York      | 59        | 2009/04/10   | $237,500   |
| Bradley Greer       | Software Engineer             | London        | 41        | 2012/10/13   | $132,000   |
| Dai Rios            | Personnel Lead                | Edinburgh     | 35        | 2012/09/26   | $217,500   |
| Jenette Caldwell    | Development Lead              | New York      | 30        | 2011/09/03   | $345,000   |
| Yuri Berry          | Chief Marketing Officer (CMO) | New York      | [MISSING] | 2009/06/25   | $675,000   |
| Caesar Vance        | Pre-Sales Support             | New York      | 21        | 2011/12/12   | $106,450   |
| Doris Wilder        | Sales Assistant               | Sidney        | 23        | 2010/09/20   | $85,600    |
| Angelica Ramos      | Chief Executive Officer (CEO) | London        | 47        | 2009/10/09   | $1,200,000 |
| Gavin Joyce         | Developer                     | Edinburgh     | 42        | 2010/12/22   | $92,575    |
| Jennifer Chang      | Regional Director             | Singapore     | 28        | 2010/11/14   | $357,650   |
| Brenden Wagner      | Software Engineer             | San Francisco | 28        | 2011/06/07   | $206,850   |
| Fiona Green         | Chief Operating Officer (COO) | San Francisco | 48        | 2010/03/11   | $850,000   |
| Shou Itou           | Regional Marketing            | Tokyo         | 20        | 2011/08/14   | $163,000   |
| Michelle House      | Integration Specialist        | Sidney        | 37        | 2011/06/02   | $95,400    |
| Suki Burks          | Developer                     | London        | 53        | 2009/10/22   | $114,500   |
| Prescott Bartlett   | Technical Author              | London        | 27        | 2011/05/07   | $145,000   |
| Gavin Cortez        | Team Leader                   | San Francisco | 22        | 2008/10/26   | $235,500   |
| Martena Mccray      | Post-Sales support            | Edinburgh     | 46        | 2011/03/09   | $324,050   |
| Unity Butler        | Marketing Designer            | San Francisco | 47        | 2009/12/09   | $85,675    |
| Howard Hatfield     | Office Manager                | San Francisco | 51        | 2008/12/16   | $164,500   |
| Hope Fuentes        | Secretary                     | San Francisco | 41        | 2010/02/12   | $109,850   |
| Vivian Harrell      | Financial Controller          | San Francisco | 62        | 2009/02/14   | $452,500   |
| Timothy Mooney      | Office Manager                | London        | 37        | 2008/12/11   | $136,200   |
| Jackson Bradshaw    | Director                      | New York      | 65        | 2008/09/26   | $645,750   |
| Olivia Liang        | Support Engineer              | Singapore     | 64        | 2011/02/03   | $234,500   |
| Bruno Nash          | Software Engineer             | London        | 38        | 2011/05/03   | $163,500   |
| Sakura Yamamoto     | Support Engineer              | Tokyo         | 37        | 2009/08/19   | $139,575   |
| Thor Walton         | Developer                     | New York      | 61        | 2013/08/11   | $98,540    |
| Finn Camacho        | Support Engineer              | San Francisco | 47        | 2009/07/07   | $87,500    |
| Serge Baldwin       | Data Coordinator              | Singapore     | 64        | 2012/04/09   | $138,575   |
| Zenaida Frank       | Software Engineer             | New York      | 63        | 2010/01/04   | $125,250   |
| Zorita Serrano      | Software Engineer             | San Francisco | 56        | 2012/06/01   | $115,000   |
| Jennifer Acosta     | Junior Javascript Developer   | Edinburgh     | 43        | 2013/02/01   | $75,650    |
| Cara Stevens        | Sales Assistant               | New York      | 46        | 2011/12/06   | $145,600   |
| Hermione Butler     | Regional Director             | London        | 47        | 2011/03/21   | $356,250   |
| Lael Greer          | Systems Administrator         | London        | 21        | 2009/02/27   | $103,500   |
| Jonas Alexander     | Developer                     | San Francisco | 30        | 2010/07/14   | $86,500    |
| Shad Decker         | Regional Director             | Edinburgh     | 51        | 2008/11/13   | $183,000   |
| Michael Bruce       | Javascript Developer          | Singapore     | 29        | 2011/06/27   | $183,000   |
| Donna Snider        | Customer Support              | New York      | 27        | 2011/01/25   | $112,000   |
| Name                | Position                      | Office        | Age       | Start date   | Salary     |



row_idx: 21
col_idx: 3
col_name: Age
label: 40
output: value: 40
tablib_key: tables/job=github_000005/batch=002383/NP6hOWDTm9bv-sjC-Rx8PcPoq_gaBsGIAu9sAb5Qgds=