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: 2005 texas rangers season
Table Content:
| date | winning team | score | winning pitcher | losing pitcher | attendance | location |
| --- | --- | --- | --- | --- | --- | --- |
| may 20 | texas | 7 - 3 | kenny rogers | brandon backe | 38109 | arlington |
| may 21 | texas | 18 - 3 | chris young | ezequiel astacio | 35781 | arlington |
| may 22 | texas | 2 - 0 | chan ho park | roy oswalt | 40583 | arlington |
| june 24 | houston | 5 - 2 | roy oswalt | ricardo rodríguez | 36199 | houston |
| june 25 | texas | 6 - 5 | chris young | brandon backe | 41868 | houston |


Statement
brandon backe be the losing pitcher when the win pitcher be roy oswalt


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