user: Question: What is the sum of Goals, when Matches is less than 29?
Columns: ['Goalkeeper', 'Goals', 'Matches', 'Average', 'Team']
Types: ['text', 'real', 'real', 'real', 'text']
Sample row: ['José Miguel Morales', 34.0, 38.0, 0.89, 'Sant Andreu']
SQL:

assistant: SELECT SUM("Goals") FROM "Table" WHERE "Matches" < 29.0;