user
Instruction
This is a table fact verification task. The goal of this task is to distinguish whether the given statement is entailed or refuted by the given table.


Table
Table Title: national school scrabble championship
Table Content:
| year | winners | location | event director | winner 's prize |
| --- | --- | --- | --- | --- |
| 2013 | kevin bowerman and raymond gao (nc) | washington , dc | john chew | us10000 |
| 2012 | andy hoang & erik salgado (nc) | orlando , fl | john chew | us10000 |
| 2011 | alex li & jackson smylie (on) | orlando , fl | john chew | us10000 |
| 2010 | evan mccarthy & bradley robbins (nh) | orlando , fl | ben greenwood | us10000 |
| 2009 | andy hoang & erik salgado (nc) | providence , ri | ben greenwood | us10000 |
| 2008 | loganrosen & matthewsilver (ct) | providence , ri | ben greenwood | us5000 |
| 2007 | aune mitchell & matthew silver (ct) | providence , ri | ben greenwood | us5000 |
| 2006 | aaronjacobs & nathanmendelsohn (ma) | boston , ma | ben greenwood | us5000 |
| 2005 | scott cardone & asif rahman (oh) | boston , ma | ben (loiterstein) greenwood | us5000 |
| 2004 | thomas bao & eric johnston (ca) | boston , ma | ben loiterstein & joe edley | us5000 |
| 2003 | nickamphlett & johnezekowitz (ma) | boston , ma | ben loiterstein & joe edley | us5000 |


Statement
matthew silver be the only individual to win the championship 2 time from 2003 to 2013


Answer Format
The final answer should be either "entailed" or "refuted" and use the following format:
```json
{
    "answer": "entailed" or "refuted"
}
```
rule
["entailed"]