Table: clemente_award_winners
Columns: year
player
team
league
position

Question: What team has a national league in 2001?
SQL: SELECT "team" FROM clemente_award_winners WHERE "league" = 'national' AND "year" = 2001

Question: What is the league of the third baseman player before 1973?
SQL: SELECT "league" FROM clemente_award_winners WHERE "year" < 1973 AND "position" = 'third baseman'