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:
| winner | country | winter olympics | fis nordic world ski championships | holmenkollen |
| thorleif haug | norway | 1924 | 1924 | 1918 , 1919 , 1920 , 1921 , 1923 , 1924 |
| nils karlsson | sweden | 1948 | 1948 | 1947 , 1951 |
| ole ellefsæter | norway | 1968 | 1968 | 1967 |
| pål tyldum | norway | 1972 | 1972 | 1969 , 1972 |
| thomas wassberg | sweden | 1984 | 1982 | 1980 , 1982 , 1987 |
| gunde svan | sweden | 1988 | 1985 , 1989 | 1986 , 1990 |
| petter northug | norway | 2010 | 2009 | 2010 |
Title:
nordic skiing
Statement:
nils karlsson was the winner 20 years after thorleif haug
Answer:
refuted