Table: football_match_6
Columns: home_team
home_team_score
away_team
away_team_score
ground
date
crowd

Question: What date was the away team from Adelaide?
SQL: SELECT "date" FROM football_match_6 WHERE "away_team" = 'adelaide'

Question: What date was the Colonial Stadium?
SQL: SELECT "date" FROM football_match_6 WHERE "ground" = 'colonial stadium'

Question: What was the total crowd attendance at Westpac Stadium?
SQL: SELECT SUM("crowd") FROM football_match_6 WHERE "ground" = 'westpac stadium'