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:
| year | competition | venue | position | event | time |
| 1982 | european championships | athens , greece | 6th | 4x400 m relay | 3:03.21 |
| 1983 | world championships | helsinki , finland | 5th | 4x400 m relay | 3:05.10 |
| 1984 | olympic games | los angeles , united states | 5th | 4x400 m relay | 3:01.44 |
| 1986 | european championships | stuttgart , west germany | semi - finals | 400 m | 45.69 |
| 1986 | european championships | stuttgart , west germany | 4th | 4x400 m relay | 3:01.37 |
| 1990 | european championships | split , yugoslavia | 4th | 4x400 m relay | 3:01.78 |
Title:
roberto ribaud
Statement:
the 4x400 m relay has a world championships competition in los angeles , united states
Answer:
refuted