user: Question: What is the total of the goal difference entries for entries with fewer than 49 goals and position smaller than 8?
Columns: ['Position', 'Played', 'Points', 'Wins', 'Draws', 'Losses', 'Goals for', 'Goals against', 'Goal Difference']
Types: ['real', 'real', 'real', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: [1.0, 30.0, 41.0, 17.0, 7.0, 6.0, 65.0, 42.0, 23.0]
SQL:

assistant: SELECT SUM("Goal Difference") FROM "Table" WHERE "Goals for" < 49.0 AND "Position" < 8.0;