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:
| Name                            | Power   | Number                                                                                                                                  | SI symbol   | SI prefix   |
|:--------------------------------|:--------|:----------------------------------------------------------------------------------------------------------------------------------------|:------------|:------------|
| One                             | 0       | 1                                                                                                                                       | (none)      | (none)      |
| Ten                             | 1       | 10                                                                                                                                      | da(D)       | deca        |
| Hundred                         | 2       | 100                                                                                                                                     | h(H)        | hecto       |
| Thousand                        | 3       | 1,000                                                                                                                                   | k(K)        | kilo        |
| Ten Thousand (Myriad)           | 4       | 10,000                                                                                                                                  | nan         | nan         |
| Hundred Thousand                | 5       | 100,000                                                                                                                                 | nan         | nan         |
| Million                         | 6       | 1,000,000                                                                                                                               | M           | mega        |
| Billion (Milliard)              | 9       | 1,000,000,000                                                                                                                           | G           | giga        |
| Trillion (Billion)              | 12      | 1,000,000,000,000                                                                                                                       | T           | tera        |
| Quadrillion (Billiard)          | 15      | 1,000,000,000,000,000                                                                                                                   | P           | peta        |
| Quintillion (Trillion)          | 18      | 1,000,000,000,000,000,000                                                                                                               | [MISSING]   | exa         |
| Sextillion (Trilliard)          | 21      | 1,000,000,000,000,000,000,000                                                                                                           | Z           | zetta       |
| Septillion (Quadrillion)        | 24      | 1,000,000,000,000,000,000,000,000                                                                                                       | Y           | yotta       |
| Octillion (Quadrilliard)        | 27      | 1,000,000,000,000,000,000,000,000,000                                                                                                   | nan         | nan         |
| Nonillion (Quintillion)         | 30      | 1,000,000,000,000,000,000,000,000,000,000                                                                                               | nan         | nan         |
| Decillion (Quintilliard)        | 33      | 1,000,000,000,000,000,000,000,000,000,000,000                                                                                           | nan         | nan         |
| Undecillion (Sextillion)        | 36      | 1,000,000,000,000,000,000,000,000,000,000,000,000                                                                                       | nan         | nan         |
| Duodecillion (Sextilliard)      | 39      | 1,000,000,000,000,000,000,000,000,000,000,000,000,000                                                                                   | nan         | nan         |
| Tredecillion (Septillion)       | 42      | 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000                                                                               | nan         | nan         |
| Quattuordecillion (Septilliard) | 45      | 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000                                                                           | nan         | nan         |
| Quindecillion (Octillion)       | 48      | 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000                                                                       | nan         | nan         |
| Sexdecillion (Octilliard)       | 51      | 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000                                                                   | nan         | nan         |
| Septendecillion (Nonillion)     | 54      | 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000                                                               | nan         | nan         |
| Octodecillion (Nonilliard)      | 57      | 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000                                                           | nan         | nan         |
| Novemdecillion (Decillion)      | 60      | 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000                                                       | nan         | nan         |
| Vigintillion (Decilliard)       | 63      | 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000                                                   | nan         | nan         |
| ...                             | ...     | ...                                                                                                                                     | ...         | ...         |
| Googol                          | 100     | 10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000, 000,000,000,000,000,000,000,000,000,000 | nan         | nan         |



row_idx: 10
col_idx: 3
col_name: SI symbol
label: E