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:
| episode | broadcast date | run time | viewers (in millions) | archive |
| episode 1 | 21 march 1970 | 24:33 | 7.1 | pal 2 colour videotape |
| episode 2 | 28 march 1970 | 24:39 | 7.6 | chroma dot colour recovery |
| episode 3 | 4 april 1970 | 24:38 | 8.0 | chroma dot colour recovery |
| episode 4 | 11 april 1970 | 24:37 | 9.3 | chroma dot colour recovery |
| episode 5 | 18 april 1970 | 24:17 | 7.1 | pal d3 colour restoration |
| episode 6 | 25 april 1970 | 24:31 | 6.9 | chroma dot colour recovery |
| episode 7 | 2 may 1970 | 24:32 | 6.4 | chroma dot colour recovery |
Title:
none
Statement:
when the broadcast date is 18april 1970 the episode was not 5
Answer:
refuted