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:
| Stadium                    | City            |   Avg. points scored / match | Capacity   |   Matches played | Overall attendance   | Average attendance per match   | Average attendance as % of capacity   |   Tries scored |   Avg. tries scored / match |   Overall points scored |
|:---------------------------|:----------------|-----------------------------:|:-----------|-----------------:|:---------------------|:-------------------------------|:--------------------------------------|---------------:|----------------------------:|------------------------:|
| Twickenham Stadium         | London          |                        45.2  | 81,605     |               10 | 796,171              | 79,617                         | 97.56%                                |             35 |                        3.5  |                     452 |
| Wembley Stadium            | London          |                        48    | 90,000     |                2 | 178,286              | 89,143                         | 99.05%                                |             10 |                        5    |                      96 |
| Millennium Stadium         | Cardiff (Wales) |                        52.63 | 74,154     |                8 | 564,524              | 70,566                         | 95.16%                                |             49 |                        6.13 |                     421 |
| Olympic Stadium            | London          |                        49.4  | 56,000     |                5 | 266,216              | 53,243                         | 95.08%                                |             30 |                        6    |                     247 |
| City of Manchester Stadium | Manchester      |                        63    | 55,097     |                1 | 50,778               | 50,778                         | 92.16%                                |             10 |                       10    |                      63 |
| St. James' Park            | Newcastle       |                        58.33 | 52,409     |                3 | 153,867              | 51,289                         | 97.86%                                |             18 |                        6    |                     175 |
| [MISSING]                  | Birmingham      |                        60    | 42,785     |                2 | 79,131               | 39,565                         | 92.47%                                |             17 |                        8.5  |                     120 |
| Elland Road                | Leeds           |                        48    | 37,914     |                2 | 66,641               | 33,320                         | 87.88%                                |             10 |                        5    |                      96 |
| Leicester City Stadium     | Leicester       |                        58.67 | 32,312     |                3 | 86,475               | 28,825                         | 89.21%                                |             23 |                        7.67 |                     176 |
| Kingsholm Stadium          | Gloucester      |                        47.75 | 16,500     |                4 | 57,327               | 14,332                         | 86.86%                                |             21 |                        5.25 |                     191 |
| Sandy Park                 | Exeter          |                        47.67 | 12,300     |                3 | 32,709               | 10,903                         | 88.64%                                |             18 |                        6    |                     143 |
| Stadium mk                 | Milton Keynes   |                        50.67 | 30,717     |                3 | 87,212               | 29,071                         | 94.64%                                |             19 |                        6.33 |                     152 |
| Brighton Community Stadium | Brighton        |                        53.5  | 30,750     |                2 | 58,468               | 29,234                         | 95.07%                                |             11 |                        5.5  |                     107 |



row_idx: 6
col_idx: 0
col_name: Stadium
label: Villa Park