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:
| ship | hull no | builder | home port | commissioned - decommissioned | nvr page |
| wichita | aor - 1 | general dynamics , quincy | oakland | 1969 - 1993 | aor - 1 |
| milwaukee | aor - 2 | general dynamics , quincy | norfolk | 1969 - 1994 | aor - 2 |
| kansas city | aor - 3 | general dynamics , quincy | oakland | 1970 - 1994 | aor - 3 |
| savannah | aor - 4 | general dynamics , quincy | norfolk | 1970 - 1995 | aor - 4 |
| wabash | aor - 5 | general dynamics , quincy | long beach | 1971 - 1994 | aor - 5 |
| kalamazoo | aor - 6 | general dynamics , quincy | norfolk | 1973 - 1996 | aor - 6 |
| roanoke | aor - 7 | national steel | long beach | 1976 - 1995 | aor - 7 |
Title:
wichita - class replenishment oiler
Statement:
the ship commissioned in 1973 was built by national steel
Answer:
refuted