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| number range | builder | introduced | no built | region | withdrawn |
| 79958 - 59 | bristol / eastern coach works | 1958 | 2 | scotland | 1966 |
| 79960 - 64 | wmd donauwãrth | 1958 | 5 | eastern region / london midland | 1967 |
| 79965 - 69 | d wickham & co | 1958 | 5 | scotland | 1966 |
| 79970 - 74 | park royal vehicles | 1958 | 5 | london midland / scotland | 1968 |
| 79975 - 79 | ac cars | 1958 | 5 | scotland / western region | 1968 |
| 999507 elliot | wickham | 1958 | 1 | departmental | 1997 |
| 998900 - 998901 | drewry | 1950 | 2 | departmental | 1990 |
Title:
british rail railbuses
Statement:
all railbuses were introduced in 1958
Answer:
refuted