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: 1993 portuguese grand prix
Table Content:
| driver | constructor | laps | time / retired | grid |
| --- | --- | --- | --- | --- |
| michael schumacher | benetton - ford | 71 | 1:32:46.309 | 6 |
| alain prost | williams - renault | 71 | + 0.982 | 2 |
| damon hill | williams - renault | 71 | + 8.206 | 1 |
| jean alesi | ferrari | 71 | + 1:07.605 | 5 |
| karl wendlinger | sauber | 70 | + 1 lap | 13 |
| martin brundle | ligier - renault | 70 | + 1 lap | 11 |
| jj lehto | sauber | 69 | + 2 laps | 12 |
| pierluigi martini | minardi - ford | 69 | + 2 laps | 19 |
| christian fittipaldi | minardi - ford | 69 | + 2 laps | 24 |
| philippe alliot | larrousse - lamborghini | 69 | + 2 laps | 20 |
| érik comas | larrousse - lamborghini | 68 | + 3 laps | 22 |
| andrea de cesaris | tyrrell - yamaha | 68 | + 3 laps | 17 |
| rubens barrichello | jordan - hart | 68 | + 3 laps | 15 |
| luca badoer | lola - ferrari | 68 | + 3 laps | 26 |
| derek warwick | footwork - mugen - honda | 63 | collision | 9 |
| riccardo patrese | benetton - ford | 63 | collision | 7 |
| pedro lamy | lotus - ford | 61 | spun off | 18 |
| johnny herbert | lotus - ford | 60 | spun off | 14 |
| mark blundell | ligier - renault | 51 | collision | 10 |
| michele alboreto | lola - ferrari | 38 | gearbox | 25 |
| gerhard berger | ferrari | 35 | accident | 8 |
| mika häkkinen | mclaren - ford | 32 | accident | 3 |
| aguri suzuki | footwork - mugen - honda | 27 | gearbox | 16 |
| ayrton senna | mclaren - ford | 19 | engine | 4 |
| ukyo katayama | tyrrell - yamaha | 12 | spun off | 21 |
| emanuele naspetti | jordan - hart | 8 | engine | 23 |


Statement
only 4 racer complete sixty - 9 lap in the 1993 portuguese grand prix


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