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:
| rider | manufacturer | laps | time / retired | grid |
| valentino rossi | yamaha | 26 | 42:37.149 | 11 |
| casey stoner | ducati | 26 | + 1.909 | 2 |
| nicky hayden | honda | 26 | + 6.077 | 13 |
| dani pedrosa | honda | 26 | + 10.465 | 9 |
| john hopkins | suzuki | 26 | + 13.138 | 5 |
| colin edwards | yamaha | 26 | + 15.139 | 6 |
| alex barros | ducati | 26 | + 36.075 | 12 |
| alex hofmann | ducati | 26 | + 41.768 | 8 |
| anthony west | kawasaki | 26 | + 43.605 | 7 |
| marco melandri | honda | 26 | + 43.796 | 4 |
| carlos checa | honda | 26 | + 43.826 | 16 |
| shinya nakano | honda | 26 | + 47.896 | 15 |
| makoto tamada | yamaha | 26 | + 54.068 | 18 |
| sylvain guintoli | yamaha | 26 | + 57.718 | 17 |
| kurtis roberts | kr212v | 26 | + 1:28.637 | 14 |
| chris vermeulen | suzuki | 26 | + 1:34.808 | 1 |
| loris capirossi | ducati | 17 | retirement | 10 |
| randy de puniet | kawasaki | 11 | retirement | 3 |
Title:
2007 dutch tt
Statement:
yamaha is the manufacturer on 4 of the motorcycle races
Answer:
supported