user: Question: What is the combined of Crowd that has a Home team which scored 12.15 (87)?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Hawthorn', '8.19 (67)', 'North Melbourne', '7.11 (53)', 'Glenferrie Oval', 6000.0, '18 July 1936']
SQL:

assistant: SELECT SUM("Crowd") FROM "Table" WHERE "Home team score" = '12.15 (87)';