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 |
| 1955 | 250cc | rd special | 2 | 13th | 0 |
| 1956 | 125cc | ref | 2 | 16th | 0 |
| 1957 | 125cc | mv agusta | 3 | 9th | 0 |
| 1957 | 250cc | mv agusta | 7 | 8th | 0 |
| 1957 | 350cc | norton | 2 | 14th | 0 |
| 1958 | 125cc | ducati | 14 | 5th | 0 |
| 1958 | 250cc | mv agusta | 4 | 10th | 0 |
| 1958 | 350cc | norton | 13 | 4th | 0 |
| 1958 | 500cc | norton | 3 | 15th | 0 |
| 1959 | 250cc | mv agusta | 4 | 11th | 0 |
| 1959 | 350cc | norton | 1 | 16th | 0 |
Title:
dave chadwick
Statement:
250cc is the class for a year later than 1958 , with less than 4 points
Answer:
refuted