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: utah jazz all - time roster
Table Content:
| player | nationality | position | years for jazz | school / club team |
| --- | --- | --- | --- | --- |
| mehmet okur | turkey | forward - center | 2004 - 11 | efes pilsen ( turkey ) |
| josã ortiz | puerto rico | center | 1988 - 90 | oregon state |
| greg ostertag | united states | center | 1995 - 2004 , 2005 - 06 | kansas |
| dan o 'sullivan | united states | center | 1990 - 91 | fordham |
| andre owens | united states | guard | 2005 - 06 | houston |


Statement
greg ostertag play the center position for the jazz from 1995 to 2004 and then from 2005 to 2006


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