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:
| tie no | team 1 | agg | team 2 | 1st leg | 2nd leg |
| 1 | borac banja luka | 2 - 1 | osijek | 2 - 0 | 0 - 1 |
| 2 | budućnost titograd | 2 - 1 | partizan | 2 - 0 | 0 - 1 |
| 3 | dinamo zagreb | 5 - 1 | sarajevo | 1 - 0 | 4 - 1 |
| 4 | hajduk split | 3 - 3 ( a ) | pelister bitola | 1 - 1 | 2 - 2 |
| 5 | ofk belgrade | 3 - 2 | željezničar sarajevo | 2 - 1 | 1 - 1 |
| 6 | proleter zrenjanin | 2 - 0 | koper | 2 - 0 | 0 - 0 |
| 7 | sloboda tuzla | 3 - 4 | rijeka | 2 - 0 | 1 - 4 |
Title:
1990 - 91 yugoslav cup
Statement:
team 2 is koper when team 1 is ofk belgrade
Answer:
refuted