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:
| name | pennant number | laid down | launched | date of commission | homeport (as of july 2013) | planned decommission (as announced in 2009) |
| norfolk | f230 | 14 december 1985 | 10 july 1987 | 1 june 1990 | sold to chile | n / a |
| argyll | f231 | 20 march 1987 | 8 april 1989 | 31 may 1991 | devonport | 2023 |
| lancaster | f229 | 18 december 1987 | 24 may 1990 | 1 may 1992 | portsmouth | 2024 |
| marlborough | f223 | 22 october 1987 | 21 january 1989 | 14 june 1991 | sold to chile | n / a |
| iron duke | f234 | 12 december 1988 | 2 march 1991 | 20 may 1993 | portsmouth | 2025 |
| monmouth | f235 | 1 june 1989 | 23 november 1991 | 24 september 1993 | devonport | 2026 |
| montrose | f236 | 1 november 1989 | 31 july 1992 | 2 june 1994 | devonport | 2027 |
| westminster | f237 | 18 january 1991 | 4 february 1992 | 13 may 1994 | portsmouth | 2028 |
| northumberland | f238 | 4 april 1991 | 4 april 1992 | 29 november 1994 | devonport | 2029 |
| richmond | f239 | 16 february 1992 | 6 april 1993 | 22 june 1995 | portsmouth | 2030 |
| somerset | f82 | 12 october 1992 | 25 june 1994 | 20 september 1996 | devonport | 2031 |
| grafton | f80 | 13 may 1993 | 5 november 1994 | 29 may 1997 | sold to chile | n / a |
| sutherland | f81 | 14 october 1993 | 9 march 1996 | 4 july 1997 | devonport | 2033 |
| kent | f78 | 16 april 1997 | 27 may 1998 | 8 june 2000 | portsmouth | 2034 |
| portland | f79 | 14 january 1998 | 15 may 1999 | 3 may 2001 | devonport | 2035 |
| st albans | f83 | 18 april 1999 | 6 may 2000 | 6 june 2002 | portsmouth | 2036 |
Title:
type 23 frigate
Statement:
all of the 16 ships were laid down in the 1980s
Answer:
refuted