Table: t_1931_vfl_match_7
Columns: home_team
home_team_score
away_team
away_team_score
venue
crowd
date

Question: Where did the away team score 10.11 (71)?
SQL: SELECT "venue" FROM t_1931_vfl_match_7 WHERE "away_team_score" = '10.11 (71)'

Question: What was the crowd size for the game at Footscray?
SQL: SELECT COUNT("crowd") FROM t_1931_vfl_match_7 WHERE "away_team" = 'footscray'