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 | 1919 , 1920 , 1921 |
| johan grøttumsbråten | norway | 1928 , 1932 | 1926 , 1928 , 1931 , 1932 | 1923 , 1926 , 1928 , 1929 , 1931 |
| oddbjørn hagen | norway | 1936 | 1934 , 1935 , 1936 | 1932 , 1934 , 1935 |
| heikki hasu | finland | 1948 | 1948 , 1950 | 1953 |
| simon slåttvik | norway | 1952 | 1952 | 1948 , 1950 , 1951 |
| sverre stenersen | norway | 1956 | 1954 , 1956 | 1955 , 1956 , 1959 |
| georg thoma | federal republic of germany | 1960 | 1960 , 1966 | 1963 , 1964 , 1965 , 1966 |
| tormod knutsen | norway | 1964 | 1964 | 1958 |
| franz keller | federal republic of germany | 1968 | 1968 | 1967 |
| ulrich wehling | german democratic republic | 1972 , 1976 , 1980 | 1972 , 1974 , 1976 , 1980 | 1975 , 1976 , 1977 |
| tom sandberg | norway | 1984 | 1982 | 1974 , 1982 |
| bjarte engen vik | norway | 1998 | 1999 , 2001 | 1996 , 1997 , 1998 , 1999 , 2000 |
| jason lamy - chappuis | france | 2010 | 2011 | 2007 , 2010 |
Title:
nordic skiing
Statement:
franz keller was a winner of the winter olympics of 1968
Answer:
supported