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: 2003 - 04 fa cup
Table Content:
| tie no | home team | score | away team | attendance |
| --- | --- | --- | --- | --- |
| 1 | liverpool | 1 - 1 | portsmouth | 34669 |
| replay | portsmouth | 1 - 0 | liverpool | 19529 |
| 2 | sunderland | 1 - 1 | birmingham city | 24966 |
| replay | birmingham city | 0 - 2 | sunderland | 25645 |
| 3 | sheffield united | 1 - 0 | colchester united | 17074 |
| 4 | tranmere rovers | 2 - 1 | swansea city | 12215 |
| 5 | fulham | 0 - 0 | west ham united | 14705 |
| replay | west ham united | 0 - 3 | fulham | 27934 |
| 6 | manchester united | 4 - 2 | manchester city | 67228 |
| 7 | millwall | 1 - 0 | burnley | 10420 |
| 8 | arsenal | 2 - 1 | chelsea | 38136 |


Statement
both the arsenal and chelsea team be only feature on the list a single time


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