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: british rail classes 253 , 254 and 255
Table Content:
| class | operator | number | year built | cars per set | unit numbers |
| --- | --- | --- | --- | --- | --- |
| class 253 | br western region | 27 | 1975 - 1977 | 9 | 253001 - 253027 |
| class 253 | br western region | 13 | 1978 - 1979 | 9 | 253028 - 253040 |
| class 253 | br cross country | 18 | 1981 - 1982 | 9 | 253041 - 253058 |
| class 254 | br eastern region br scottish region | 32 | 1977 - 1979 | 10 | 254001 - 254032 |
| class 254 | br eastern region br scottish region | 4 | 1982 | 10 | 254033 - 254037 |


Statement
br eastern region br scottish region be the last operator for class 253 british rail


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