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: 2006 in paleontology
Table Content:
| name | status | authors | unit | location |
| --- | --- | --- | --- | --- |
| cathayopterus | valid | wang zhou | yixian formation | china |
| caviramus | valid | fröbisch fröbisch | kössen formation | switzerland |
| longchengpterus | valid | wang li duan cheng | jiufotang formation | china |
| muzquizopteryx | valid | frey buchy stinnesbeck gonzalez stefano | austin group | mexico |
| yixianopterus | valid | lü ji yuan gao sun ji | yixian formation | china |


Statement
china be the country where the jiufotang formation be locate with fröbisch fröbisch as author


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