Give you a statement and table with its title in Markdown format, please determine whether the statement is supported or refuted by, or is unrelated to the table. It'a binary classification problem, you should choose the answer between supported and refuted. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| race | date | location | pole position | fastest lap | race winner | constructor | report |
| brazilian grand prix | 23 march | jacarepaguá | ayrton senna | nelson piquet | nelson piquet | williams - honda | report |
| spanish grand prix | 13 april | jerez | ayrton senna | nigel mansell | ayrton senna | lotus - renault | report |
| san marino grand prix | 27 april | imola | ayrton senna | nelson piquet | alain prost | mclaren - tag | report |
| monaco grand prix | 11 may | monaco | alain prost | alain prost | alain prost | mclaren - tag | report |
| belgian grand prix | 25 may | spa - francorchamps | nelson piquet | alain prost | nigel mansell | williams - honda | report |
| canadian grand prix | 15 june | circuit gilles villeneuve | nigel mansell | nelson piquet | nigel mansell | williams - honda | report |
| detroit grand prix | 22 june | detroit | ayrton senna | nelson piquet | ayrton senna | lotus - renault | report |
| french grand prix | 6 july | paul ricard | ayrton senna | nigel mansell | nigel mansell | williams - honda | report |
| british grand prix | 13 july | brands hatch | nelson piquet | nigel mansell | nigel mansell | williams - honda | report |
| german grand prix | 27 july | hockenheimring | keke rosberg | gerhard berger | nelson piquet | williams - honda | report |
| hungarian grand prix | 10 august | hungaroring | ayrton senna | nelson piquet | nelson piquet | williams - honda | report |
| austrian grand prix | 17 august | österreichring | teo fabi | gerhard berger | alain prost | mclaren - tag | report |
| italian grand prix | 7 september | monza | teo fabi | teo fabi | nelson piquet | williams - honda | report |
| portuguese grand prix | 21 september | estoril | ayrton senna | nigel mansell | nigel mansell | williams - honda | report |
| mexican grand prix | 12 october | hermanos rodriguez | ayrton senna | nelson piquet | gerhard berger | benetton - bmw | report |
| australian grand prix | 26 october | adelaide | nigel mansell | nelson piquet | alain prost | mclaren - tag | report |
Title:
1986 formula one season
Statement:
nigel mansell is the only race winner who did not win multiple races
Answer:
refuted