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:
| Statesmen, former politicians, and celebrities   | Party       | Endorsement   | Date              | Notes                                                                                                                                                      |   Reference |
|:-------------------------------------------------|:------------|:--------------|:------------------|:-----------------------------------------------------------------------------------------------------------------------------------------------------------|------------:|
| Robert Bork                                      | nan         | Mitt Romney   | 8.2.2011          | Jurist/Former Solicitor General/Author                                                                                                                     |         nan |
| Jeb Bush                                         | Republican  | Mitt Romney   | March 21, 2012    | Former Governor of Florida, the son of former President George H. W. Bush, and the younger brother of former President George W. Bush                      |         nan |
| Cindy Crawford                                   | nan         | Mitt Romney   | nan               | Supermodel                                                                                                                                                 |         nan |
| John Danforth                                    | Republican  | Mitt Romney   | 12.2.2011         | Former United States Ambassador to the United Nations and former United States Senator from Missouri                                                       |         nan |
| Clint Eastwood                                   | Republican  | Mitt Romney   | 8.3.2012          | Academy Award-winning Director, Actor, and Former Mayor of Carmel-by-the-Sea, California. A strong proponent of the Second Amendment and the NRA.          |         nan |
| Carly Fiorina                                    | Republican  | Mitt Romney   | March 26, 2012    | Former Hewlett-Packard CEO and 2010 Republican California Senatorial nominee.                                                                              |         nan |
| Rudy Giuliani                                    | Republican  | Mitt Romney   | April 23, 2012    | Former New York City Mayor and 2008 presidential candidate                                                                                                 |         nan |
| Dan Jansen                                       | nan         | Mitt Romney   | nan               | Retired speed skater                                                                                                                                       |         nan |
| Brad Little                                      | Republican  | Mitt Romney   | nan               | Lieutenant Governor of Idaho                                                                                                                               |         nan |
| Daniel S. Loeb                                   | nan         | Mitt Romney   | nan               | Hedge fund manager; shareholder activist                                                                                                                   |         nan |
| Christine O'Donnell                              | Republican  | Mitt Romney   | December 13, 2011 | Republican Delaware Senatorial nominee in 2008 and 2010.                                                                                                   |         nan |
| Robert Ray                                       | Republican  | Mitt Romney   | 12.2.2011         | Former Governor of Iowa                                                                                                                                    |         nan |
| Nancy Reagan                                     | Republican  | Mitt Romney   | May 31, 2012      | Former First Lady of the United States under President Ronald Reagan                                                                                       |         nan |
| Donald Trump                                     | Independent | Mitt Romney   | February 2, 2012  | An American business magnate, television personality and author                                                                                            |         nan |
| Lech Walesa                                      | nan         | Mitt Romney   | [MISSING]         | Iconic leader and past president of Poland.                                                                                                                |         nan |
| Meg Whitman                                      | Republican  | Mitt Romney   | nan               | 2010 Republican nominee for Governor of California, former eBay CEO and current Hewlett-Packard CEO; also a business associate of Romney's at Bain Capital |         nan |



row_idx: 14
col_idx: 3
col_name: Date
label: July 31, 2012