Table: south_american_stadiums
Columns: rank
stadium
capacity
city
country

Question: Which country is ranked higher than 68, with a city named Santa Fe and a stadium that has a capacity of 32,000?
SQL: SELECT "country" FROM south_american_stadiums WHERE "rank" > 68 AND "capacity" = '32,000' AND "city" = 'santa fe'

Question: What is the capacity of the stadium with a rank lower than 31 located in the city of Belém ?
SQL: SELECT "capacity" FROM south_american_stadiums WHERE "rank" < 31 AND "city" = 'belém'