Table: lakers_roster
Columns: player
nationality
position
from
school_country

Question: What is the average number of players from Duquesne?
SQL: SELECT AVG("from") FROM lakers_roster WHERE "school_country" = 'duquesne'

Question: Who is the player from Kentucky before 1977?
SQL: SELECT "player" FROM lakers_roster WHERE "from" < 1977 AND "school_country" = 'kentucky'

Question: Which player played center, is from the United States, and entered before 2012?
SQL: SELECT "player" FROM lakers_roster WHERE "from" < 2012 AND "position" = 'center' AND "nationality" = 'united states'

Question: Which player plays forward and is from Kentucky?
SQL: SELECT "player" FROM lakers_roster WHERE "position" = 'forward' AND "school_country" = 'kentucky'