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: 1968 formula one season
Table Content:
| race | circuit | date | pole position | fastest lap | winning driver | constructor | tyre | report |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| south african grand prix | kyalami | 1 january | jim clark | jim clark | jim clark | lotus - ford | f | report |
| spanish grand prix | jarama | 12 may | chris amon | jean - pierre beltoise | graham hill | lotus - ford | f | report |
| monaco grand prix | monaco | 26 may | graham hill | richard attwood | graham hill | lotus - ford | f | report |
| belgian grand prix | spa - francorchamps | 9 june | chris amon | john surtees | bruce mclaren | mclaren - ford | g | report |
| dutch grand prix | zandvoort | 23 june | chris amon | jean - pierre beltoise | jackie stewart | matra - ford | d | report |
| french grand prix | rouen - les - essarts | 7 july | jochen rindt | pedro rodríguez | jacky ickx | ferrari | f | report |
| british grand prix | brands hatch | 20 july | graham hill | jo siffert | jo siffert | lotus - ford | f | report |
| german grand prix | nürburgring | 4 august | jacky ickx | jackie stewart | jackie stewart | matra - ford | d | report |
| italian grand prix | monza | 8 september | john surtees | jackie oliver | denny hulme | mclaren - ford | g | report |
| canadian grand prix | mont - tremblant | 22 september | jochen rindt | jo siffert | denny hulme | mclaren - ford | g | report |
| united states grand prix | watkins glen | 6 october | mario andretti | jackie stewart | jackie stewart | matra - ford | d | report |
| mexican grand prix | hermanos rodriguez | 3 november | jo siffert | jo siffert | graham hill | lotus - ford | f | report |


Statement
at one point , chris amon hold pole position for 2 consecutive race : the belgian and dutch 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"]