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:
| year | class | team | points | rank | wins |
| 1972 | 125cc | yamaha | 12 | 15th | 0 |
| 1972 | 250cc | yamaha | 8 | 20th | 0 |
| 1972 | 350cc | yamaha | 0 | - | 0 |
| 1972 | 500cc | yamaha | 5 | 29th | 0 |
| 1973 | 125cc | yamaha | 0 | - | 0 |
| 1973 | 250cc | yamaha | 15 | 16th | 1 |
| 1973 | 350cc | yamaha | 0 | - | 0 |
| 1973 | 500cc | yamaha | 0 | - | 0 |
| 1974 | 250cc | yamaha | 15 | 12th | 1 |
| 1974 | 350cc | yamaha | 0 | - | 0 |
| 1974 | 500cc | yamaha | 18 | 10th | 0 |
| 1975 | 250cc | yamaha | 0 | - | 0 |
| 1975 | 350cc | yamaha | 15 | 14th | 1 |
| 1975 | 500cc | yamaha | 4 | 28th | 0 |
| 1976 | 250cc | yamaha | 0 | - | 0 |
| 1976 | 350cc | yamaha | 0 | - | 0 |
| 1976 | 500cc | yamaha | 0 | - | 0 |
| 1980 | 250cc | yamaha | 2 | 30th | 0 |
| 1981 | 350cc | yamaha | 6 | 20th | 0 |
Title:
charlie williams (motorcyclist)
Statement:
in 1981 yamaha with a class 350cc ranked 20th with 0 wins
Answer:
supported