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 | date | winner | result | loser | location |
| 1970 | november 1 | kansas city chiefs | 17 - 17 | oakland raiders | municipal stadium |
| 1970 | december 12 | oakland raiders | 20 - 6 | kansas city chiefs | oakland - alameda county coliseum |
| 1971 | october 31 | kansas city chiefs | 20 - 20 | oakland raiders | oakland - alameda county coliseum |
| 1971 | december 12 | kansas city chiefs | 16 - 14 | oakland raiders | municipal stadium |
| 1972 | november 5 | kansas city chiefs | 27 - 14 | oakland raiders | arrowhead stadium |
| 1972 | november 26 | oakland raiders | 26 - 3 | kansas city chiefs | oakland - alameda county coliseum |
| 1973 | september 30 | kansas city chiefs | 16 - 3 | oakland raiders | arrowhead stadium |
| 1973 | december 8 | oakland raiders | 37 - 7 | kansas city chiefs | oakland - alameda county coliseum |
| 1974 | september 22 | oakland raiders | 27 - 7 | kansas city chiefs | oakland - alameda county coliseum |
| 1974 | december 8 | oakland raiders | 7 - 6 | kansas city chiefs | arrowhead stadium |
| 1975 | october 12 | kansas city chiefs | 42 - 10 | oakland raiders | arrowhead stadium |
| 1975 | december 21 | oakland raiders | 28 - 20 | kansas city chiefs | oakland - alameda county coliseum |
| 1976 | september 20 | oakland raiders | 24 - 21 | kansas city chiefs | arrowhead stadium |
| 1976 | november 14 | oakland raiders | 21 - 10 | kansas city chiefs | oakland - alameda county coliseum |
| 1977 | october 3 | oakland raiders | 37 - 28 | kansas city chiefs | oakland - alameda county coliseum |
| 1977 | december 18 | oakland raiders | 21 - 20 | kansas city chiefs | arrowhead stadium |
| 1978 | october 15 | oakland raiders | 28 - 6 | kansas city chiefs | oakland - alameda county coliseum |
| 1978 | november 5 | oakland raiders | 20 - 10 | kansas city chiefs | arrowhead stadium |
| 1979 | september 23 | kansas city chiefs | 35 - 7 | oakland raiders | arrowhead stadium |
| 1979 | november 18 | kansas city chiefs | 24 - 21 | oakland raiders | oakland - alameda county coliseum |
Title:
chiefs - raiders rivalry
Statement:
21st december is the date when the winner was the kansas city chiefs in 1975
Answer:
refuted