Table: canadiens_roster
Columns: round
player
position
nationality
college_junior_club_team

Question: What is the nationality of the player in round 4?
SQL: SELECT "nationality" FROM canadiens_roster WHERE "round" = 4

Question: What is the round of Jimmy Drolet from Canada?
SQL: SELECT "round" FROM canadiens_roster WHERE "nationality" = 'canada' AND "player" = 'jimmy drolet'

Question: What is the round number of Jessie Rezansoff, who plays right wing?
SQL: SELECT SUM("round") FROM canadiens_roster WHERE "position" = 'right wing' AND "player" = 'jessie rezansoff'