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    | Lexer algorithm   | Output languages                                 | Grammar, code   | Development platform   | License            |
|:--------|:------------------|:-------------------------------------------------|:----------------|:-----------------------|:-------------------|
| Alex    | DFA               | Haskell                                          | mixed           | all                    | BSD                |
| AustenX | DFA               | Java                                             | separate        | all                    | BSD                |
| C# Flex | DFA               | C#                                               | mixed           | .NET CLR               | GNU GPL            |
| C# Lex  | DFA               | C#                                               | mixed           | .NET CLR               | ?                  |
| CookCC  | DFA               | Java                                             | mixed           | Java Virtual Machine   | BSD                |
| DFAlex  | DFA               | no code generation required                      | Java            | Java                   | Apache License 2.0 |
| Dolphin | DFA               | C++                                              | separate        | all                    | Proprietary        |
| flex    | [MISSING]         | C, C++                                           | mixed           | all                    | BSD                |
| gelex   | DFA               | Eiffel                                           | mixed           | Eiffel                 | MIT                |
| golex   | DFA               | Go                                               | mixed           | Go                     | BSD-style          |
| gplex   | DFA               | C#                                               | mixed           | .NET CLR               | BSD-like           |
| JFlex   | DFA               | Java                                             | mixed           | Java Virtual Machine   | BSD                |
| JLex    | DFA               | Java                                             | mixed           | Java Virtual Machine   | BSD-like           |
| lex     | DFA               | C                                                | mixed           | POSIX                  | Proprietary, CDDL  |
| lexertl | DFA               | C++                                              | nan             | all                    | GNU LGPL           |
| Quex    | DFA direct code   | C, C++                                           | mixed           | all                    | GNU LGPL           |
| Ragel   | DFA               | C, C++, Assembly, Objective C, D, Go, Ruby, Java | mixed           | all                    | GNU GPL, MIT[1][1] |
| re2c    | DFA direct code   | C                                                | mixed           | all                    | Public domain      |



row_idx: 7
col_idx: 1
col_name: Lexer algorithm
label: DFA table driven