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:
| number | previous number (s) | previous class | converted | withdrawn | disposal |
| 1 | 68845 | j52 | 1952 | 1958 | scrapped (1958) |
| 2 (1st) | 68816 | j52 | 1952 | 1956 | scrapped (1956) |
| 2 (2nd) | 68858 | j52 | 1956 | 1961 | scrapped (1961) |
| 3 | 68181 | y3 | 1952 | 1959 | scrapped (1959) |
| 4 | 68132 | y1 | 1952 | 1959 | scrapped (1959) |
| 5 | 68165 | y3 | 1953 | 1958 | scrapped (1958) |
| 6 | 68133 | y1 | 1953 | 1955 | scrapped (1955) |
| 7 | 68166 | y3 | 1953 | 1964 | scrapped (1964) |
| 8 | 68183 | y3 | 1955 | 1959 | scrapped (1959) |
| 9 | 68840 | j52 | 1958 | 1961 | scrapped (1961) |
| 10 | 68911 | j50 | 1961 | 1965 | scrapped (1965) |
| 11 | 68914 | j50 | 1961 | 1965 | scrapped (1965) |
| 12 | 68917 | j50 | 1962 | 1965 | scrapped (1965) |
| 13 | 68928 | j50 | 1962 | 1965 | scrapped (1965) |
| 14 | 68961 | j50 | 1962 | 1965 | scrapped (1965) |
| 15 | 68971 | j50 | 1962 | 1965 | scrapped (1965) |
| 16 | 68976 | j50 | 1962 | 1965 | scrapped (1965) |
| 17 | 61059 | b1 | 1963 | 1966 | scrapped (1966) |
| 18 | 61181 | b1 | 1963 | 1965 | scrapped (1966) |
| 19 | 61204 | b1 | 1963 | 1966 | scrapped (1966) |
| 20 | 61205 | b1 | 1963 | 1965 | scrapped (1966) |
| 21 (1st) | 68162 | y3 | 1956 | 1960 | scrapped (1960) |
| 21 (2nd) | 61233 | b1 | 1963 | 1966 | scrapped (1966) |
| 22 | 61252 | b1 | 1963 | 1964 | scrapped (1966) |
| 23 | 61300 | b1 | 1963 | 1965 | scrapped (1966) |
| 24 (1st) | 61323 | b1 | 1963 | 1963 | scrapped (1964) |
| 24 (2nd) | 61375 | b1 | 1963 | 1966 | scrapped (1966) |
| 25 | 61272 | b1 | 1965 | 1966 | scrapped (1966) |
| 26 | 61138 | b1 | 1965 | 1967 | scrapped (1968) |
| 27 | 61105 | b1 | 1965 | 1966 | scrapped (1966) |
| 28 | 61194 | b1 | 1965 | 1966 | scrapped (1966) |
| 29 | 61264 | b1 | 1965 | 1967 | preserved |
| 30 | 61050 | b1 | 1966 | 1968 | scrapped (1968) |
| 31 (2nd) | 61051 | b1 | 1966 | 1966 | scrapped (1966) |
| 32 (2nd) | 61315 | b1 | 1966 | 1968 | scrapped (1968) |
Title:
none
Statement:
with a previous number of 68165 , the previous class is y1
Answer:
refuted