Table: commonwealth_games_medals
Columns: year
gold
silver
bronze
total

Question: How many silver medals were won in 1938?
SQL: SELECT "silver" FROM commonwealth_games_medals WHERE "year" = '1938'

Question: How many gold medals were won in 1970?
SQL: SELECT "gold" FROM commonwealth_games_medals WHERE "year" = '1970'

Question: How many silver medals were won the year 7 gold medals were won?
SQL: SELECT "silver" FROM commonwealth_games_medals WHERE "gold" = '7'

Question: How many bronze medals were won in 1998?
SQL: SELECT "bronze" FROM commonwealth_games_medals WHERE "year" = '1998'