user: Question: What is the sum of Position, when Points 1 is greater than 23, and when Goals For is "77"?
Columns: ['Position', 'Team', 'Played', 'Drawn', 'Lost', 'Goals For', 'Goals Against', 'Goal Difference', 'Points 1']
Types: ['real', 'text', 'real', 'real', 'real', 'real', 'real', 'text', 'real']
Sample row: [1.0, 'Vauxhall Motors', 34.0, 8.0, 1.0, 68.0, 17.0, '+51', 58.0]
SQL:

assistant: SELECT SUM("Position") FROM "Table" WHERE "Points 1" > 23.0 AND "Goals For" = 77.0;