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:
| County name        | County seat    |   Year founded | 2010 population                  | Percent of total   | Area (sq. mi.)                                     |
|:-------------------|:---------------|---------------:|:---------------------------------|:-------------------|:---------------------------------------------------|
| Androscoggin       | Auburn         |           1854 | 107,702                          | 1.44%              | 497                                                |
| Aroostook          | Houlton        |           1839 | 71,870                           | 19.76%             | 6,829                                              |
| Cumberland         | Portland       |           1760 | 281,674                          | 3.52%              | 1,217                                              |
| Franklin           | Farmington     |           1838 | 30,768                           | 5.05%              | 1,744                                              |
| Hancock            | Ellsworth      |           1789 | 54,418                           | 4.40%              | 1,522                                              |
| Kennebec           | Augusta        |           1799 | 122,151                          | 2.75%              | 951                                                |
| Knox               | Rockland       |           1860 | 39,736                           | 3.30%              | 1,142                                              |
| Lincoln            | Wiscasset      |           1760 | 34,457                           | 2.03%              | 700                                                |
| Oxford             | Paris          |           1805 | 57,833                           | 6.29%              | 2,175                                              |
| Penobscot          | Bangor         |           1816 | 153,923                          | 10.29%             | 3,556                                              |
| [MISSING]          | Dover-Foxcroft |           1838 | 17,535                           | 12.67%             | 4,377                                              |
| Sagadahoc          | Bath           |           1854 | 35,293                           | 1.07%              | 370                                                |
| Somerset           | Skowhegan      |           1809 | 52,228                           | 11.85%             | 4,095                                              |
| Waldo              | Belfast        |           1827 | 38,786                           | 2.47%              | 853                                                |
| Washington         | Machias        |           1790 | 32,856                           | 9.42%              | 3,255                                              |
| York               | Alfred         |           1636 | 197,131                          | 3.68%              | 1,271                                              |
| Total counties: 16 | nan            |            nan | Total 2010 population: 1,328,361 | nan                | Total state area: 34,554 square miles (89,494 km2) |



row_idx: 10
col_idx: 0
col_name: County name
label: Piscataquis