Task: Data-Imputation (source dataset: WebTable)

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:
|   Year | Title                                                     | Director   | Writer   | Executive producer   | Role                                        |
|-------:|:----------------------------------------------------------|:-----------|:---------|:---------------------|:--------------------------------------------|
|   1986 | Somewhere in the Arctic (short)                           | Yes        | Yes      | nan                  | Bahr                                        |
|   1987 | A Story (short)                                           | Yes        | Yes      | nan                  | Randy The Goon Squad (also producer)        |
|   1987 | Mighty Mouse: The New Adventures (TV series, 13 episodes) | nan        | Yes      | nan                  | nan                                         |
|   1995 | Toy Story                                                 | nan        | Yes      | nan                  | Commercial Chorus                           |
|   1998 | A Bug's Life                                              | Yes        | Yes      | nan                  | Bug Zapper Fly #1                           |
|   1999 | Toy Story 2                                               | nan        | Yes      | nan                  | Emperor Zurg                                |
|   2000 | Buzz Lightyear of Star Command: The Adventure Begins      | nan        | nan      | nan                  | Hamm                                        |
|   2001 | Monsters, Inc.                                            | nan        | Yes      | Yes                  | nan                                         |
|   2003 | Finding Nemo                                              | Yes        | Yes      | nan                  | Crush New England Lobster Additional voices |
|   2003 | Exploring the Reef                                        | nan        | nan      | Yes                  | nan                                         |
|   2004 | The Incredibles                                           | nan        | nan      | nan                  | Additional voices                           |
|   2006 | Cars                                                      | nan        | nan      | nan                  | Fred                                        |
|   2007 | Ratatouille                                               | nan        | nan      | Yes                  | nan                                         |
|   2008 | WALL-E                                                    | Yes        | Yes      | nan                  | Additional voices                           |
|   2008 | BURN-E (short)                                            | nan        | Yes      | Yes                  | nan                                         |
|   2008 | Presto (short)                                            | nan        | nan      | Yes                  | nan                                         |
|   2009 | Up                                                        | nan        | nan      | Yes                  | nan                                         |
|   2009 | Partly Cloudy (short)                                     | nan        | nan      | Yes                  | nan                                         |
|   2010 | Toy Story 3                                               | nan        | Yes      | nan                  | nan                                         |
|   2010 | Fetch! with Ruff Ruffman                                  | nan        | nan      | nan                  | Crush                                       |
|   2012 | John Carter                                               | Yes        | Yes      | nan                  | [MISSING]                                   |
|   2012 | Brave                                                     | nan        | nan      | Yes                  | nan                                         |
|   2013 | Monsters University                                       | nan        | nan      | Yes                  | nan                                         |
|   2013 | Toy Story of Terror! (short)                              | nan        | nan      | Yes                  | nan                                         |
|   2015 | Inside Out                                                | nan        | nan      | Yes                  | nan                                         |
|   2015 | The Good Dinosaur                                         | nan        | nan      | Yes                  | nan                                         |
|   2016 | Finding Dory                                              | Yes        | Yes      | nan                  | Crush Additional Voices                     |
|   2016 | Piper (short)                                             | nan        | nan      | Yes                  | nan                                         |
|   2019 | Toy Story 4                                               | nan        | Yes      | nan                  | nan                                         |



row_idx: 20
col_idx: 5
col_name: Role
label: nan