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:
| Year      | Superintendent    | Elementary Principal   | Elementary Vice Principal   | Middle School Principal   | Middle School Vice Principal   | Academy Principal   | Academy Asst. Principal   |
|:----------|:------------------|:-----------------------|:----------------------------|:--------------------------|:-------------------------------|:--------------------|:--------------------------|
| 1999-2000 | Gene Spanneut     | Matt Herz              | nan                         | Linda Raide               | nan                            | Keith Mathews       | nan                       |
| 2000-2001 | Gene Spanneut     | Matt Herz              | Ed Bronson                  | Linda Raide               | nan                            | Keith Mathews       | nan                       |
| 2001-2002 | Gene Spanneut     | Matt Herz              | Ed Bronson                  | Linda Raide               | nan                            | Keith Mathews       | nan                       |
| 2002-2003 | Gene Spanneut     | Matt Herz              | Ed Bronson                  | Linda Raide               | nan                            | Keith Mathews       | nan                       |
| 2003-2004 | Gene Spanneut     | Matt Herz              | Ed Bronson                  | Linda Raide               | nan                            | Keith Mathews       | nan                       |
| 2004-2005 | Tiffany Phillips* | Matt Herz              | Ed Bronson                  | Linda Raide               | nan                            | Keith Mathews       | nan                       |
| 2005-2006 | Ann Orman         | Tom Cox*               | Ed Bronson                  | Linda Raide               | nan                            | Keith Mathews       | nan                       |
| 2006-2007 | Ann Orman         | Ed Bronson             | Marcie Ware                 | Linda Raide               | nan                            | Keith Mathews       | nan                       |
| 2007-2008 | Ann Orman         | Ed Bronson             | Marcie Ware                 | Dave Pullen               | Warren Kinsey                  | Keith Mathews       | nan                       |
| 2008-2009 | Ann Orman         | Ed Bronson             | Marcie Ware                 | Dave Pullen               | Warren Kinsey                  | Keith Mathews       | nan                       |
| 2009-2010 | Ann Orman         | Ed Bronson             | Marcie Ware                 | Becky Perrault            | Warren Kinsey                  | Dave Pullen         | nan                       |
| 2010-2011 | Orman/Cox*        | Ed Bronson             | Marcie Ware                 | Becky Perrault            | Warren Kinsey                  | Dave Pullen         | nan                       |
| 2011-2012 | David Hamilton    | Marcie Ware            | Warren Kinsey               | Becky Perrault            | nan                            | Dave Pullen         | nan                       |
| 2012-2013 | David Hamilton    | Marcie Ware            | nan                         | Dennis*/Johnson           | Warren Kinsey                  | Dave Pullen         | nan                       |
| 2013-2014 | David Hamilton    | Ed Foote               | Kelly Dalos                 | [MISSING]                 | nan                            | Dave Pullen         | Warren Kinsey             |
| 2014-2015 | Howard Dennis     | Ed Foote               | Kelly Dalos                 | Kelley Johnson            | nan                            | Dave Pullen         | Warren Kinsey             |
| 2015-2016 | Howard Dennis     | Ed Foote               | Kelly Dalos                 | Kelley Johnson            | nan                            | Dave Pullen         | Warren Kinsey             |
| 2016-2017 | Howard Dennis     | Ed Foote               | Kelly Dalos                 | Kelley Johnson            | nan                            | Dave Pullen         | Warren Kinsey             |



row_idx: 14
col_idx: 4
col_name: Middle School Principal
label: Kelley Johnson