Table: t_1977_vfl_football
Columns: home_team
home_team_score
away_team
away_team_score
venue
crowd
date

Question: Tell me the away team score for away team of south melbourne
SQL: SELECT "away_team_score" FROM t_1977_vfl_football WHERE "away_team" = 'south melbourne'

Question: I want to know the away team score for vfl park venue
SQL: SELECT "away_team_score" FROM t_1977_vfl_football WHERE "venue" = 'vfl park'