user: Question: What years did the player ranked less than 8 and had 447 matches play?
Columns: ['Rank', 'Name', 'Years', 'Matches', 'Goals']
Types: ['real', 'text', 'text', 'real', 'real']
Sample row: [1.0, 'Petar Zhekov', '1963–1976', 333.0, 253.0]
SQL:

assistant: SELECT "Years" FROM "Table" WHERE "Rank" < 8.0 AND "Matches" = 447.0;