user: Question: How many goals on average had 644 matches and a rank bigger than 3?
Columns: ['Rank', 'Name', 'Years', 'Matches', 'Goals']
Types: ['real', 'text', 'text', 'real', 'real']
Sample row: [1.0, 'Jimmy Jones', '1947–1949,1951–1964', 285.0, 332.0]
SQL:

assistant: SELECT AVG("Goals") FROM "Table" WHERE "Matches" = 644.0 AND "Rank" > 3.0;