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: attack squadron 163 (united states navy)
Table Content:
| from | aircraft | carrier | air wing | tail code | area |
| --- | --- | --- | --- | --- | --- |
| 7 june 1962 | a4d - 2 | cva - 34 | cvg - 16 | ah - 3xx | westpac |
| 1 august 1963 | a - 4b | cva - 34 | cvw - 16 | ah - 3xx | westpac |
| 5 april 1965 | a - 4e | cva - 34 | cvw - 16 | ah - 3xx | vietnam war |
| 26 may 1966 | a - 4e | cva - 34 | cvw - 16 | ah - 3xx | vietnam war |
| 16 june 1967 | a - 4e | cva - 34 | cvw - 16 | ah - 3xx | vietnam war |
| 18 july 1968 | a - 4e | cva - 19 | cvw - 21 | np - 3xx | vietnam war |


Statement
when the from be 26 may 1966 the area be vietnam war and when the from be 16 june 1968 the from be also vietnam war


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