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: list of ben 10: alien force episodes
Table Content:
| no in series | no in season | title | directed by | written by | original airdate | production code |
| --- | --- | --- | --- | --- | --- | --- |
| 27 - 28 | 1 - 2 | vengeance of vilgax | dan riba and butch lukic | dwayne mcduffie | september 11 , 2009 | 301 - 302 |
| 29 | 3 | inferno | john fang | len uhley | september 18 , 2009 | 303 |
| 30 | 4 | fool 's gold | dan riba | eugene son | september 25 , 2009 | 304 |
| 31 | 5 | simple | butch lukic | stan berkowitz | october 9 , 2009 | 305 |
| 32 | 6 | vreedle , vreedle | john fang | charlotte fullerton | october 16 , 2009 | 306 |
| 33 | 7 | singlehanded | dan riba | marty isenberg | october 23 , 2009 | 307 |
| 34 | 8 | if all else fails | butch lukic | adam beecham | november 6 , 2009 | 308 |
| 35 | 9 | in charm 's way | john fang and rick morales | peter david | november 13 , 2009 | 309 |
| 36 | 10 | ghost town | dan riba | nicole dubuc | november 20 , 2009 | 310 |
| 37 | 11 | trade - off | dan riba | len wein | december 4 , 2009 | 311 |
| 38 | 12 | busy box | rick morales | jake black | december 11 , 2009 | 312 |
| 39 | 13 | con of rath | dan riba | len uhley | january 8 , 2010 | 313 |
| 40 | 14 | primus | butch lukic | charlotte fullerton | january 15 , 2010 | 314 |
| 41 | 15 | time heals | rick morales | len ulhey | january 22 , 2010 | 315 |
| 42 | 16 | the secret of chromastone | dan riba | rick fogel | january 29 , 2010 | 316 |
| 43 | 17 | above and beyond | butch lukic | eugene son | march 12 , 2010 | 317 |
| 44 | 18 | vendetta | rick morales | len wein | march 19 , 2010 | 318 |


Statement
the 15th episode in the third season have production code 315


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