Table: t_1975_vfl_match
Columns: home_team
home_team_score
away_team
away_team_score
venue
crowd
date

Question: Who is the home team that played at MCG?
SQL: SELECT "home_team" FROM t_1975_vfl_match WHERE "venue" = 'mcg'

Question: What is the score of the away team that played richmond?
SQL: SELECT "away_team_score" FROM t_1975_vfl_match WHERE "home_team" = 'richmond'