Table: t_1968_vfl_match_3
Columns: home_team
home_team_score
away_team
away_team_score
venue
crowd
date

Question: Which home team played Hawthorn as the away team?
SQL: SELECT "home_team" FROM t_1968_vfl_match_3 WHERE "away_team" = 'hawthorn'

Question: When did Geelong play as the home team?
SQL: SELECT "date" FROM t_1968_vfl_match_3 WHERE "home_team" = 'geelong'

Question: Who played as the away team when Essendon was the home team?
SQL: SELECT "away_team" FROM t_1968_vfl_match_3 WHERE "home_team" = 'essendon'