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:
| tournament | also currently known as | city (s) | country | court surface | tier iv in | years |
| rome | internazionali bnl d'italia | rome | italy | clay | 1988 | 1 |
| zurich | zurich open | zurich | switzerland | hard (i) | 1988 | 1 |
| hamburg | rexona cup | hamburg | germany | clay | 1988 - 1989 | 2 |
| new jersey | united jersey bank classic | mahwah , nj | united states | hard | 1988 - 1989 | 2 |
| newport | virginia slims of newport | newport , ri | united states | clay | 1988 - 1989 | 2 |
| san antonio | pilot pen tennis | san antonio , tx | united states | hard | 1988 - 1989 | 2 |
| san diego | san diego open | san diego , ca | united states | hard | 1988 - 1989 | 2 |
| sydney | medibank international sydney | sydney | australia | grass (1988) hard (1989) | 1988 - 1989 | 2 |
| tampa | eckerd open | tampa , fl | united states | clay | 1988 - 1989 | 2 |
| puerto rico open | honda classic | san juan (1988 - 1989 , 1991 - 1993) dorado (1990) | puerto rico | hard | 1988 - 1993 | 6 |
| kansas | avon championships of kansas | wichita , ks | united states | hard | 1990 | 1 |
Title:
wta tier iv tournaments
Statement:
the average number of years a clay court tournament was played is 1.75
Answer:
supported