user: Question: What was the home team score at Richmond's away game against Footscray?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Footscray', '19.15 (129)', 'Richmond', '17.20 (122)', 'Yarraville Oval', 15000.0, '25 July 1942']
SQL:

assistant: SELECT "Home team score" FROM "Table" WHERE "Away team" = 'Richmond';