CREATE TABLE "round_four" (
  "pick_num" real,
  "player" text,
  "position" text,
  "nationality" text,
  "nhl_team" text,
  "college_junior_club_team" text
);

Question: How many nationalities does Tom Colley have?
SQL: SELECT COUNT("nationality") FROM "round_four" WHERE "player"='Tom Colley';

Question: What's the NHL team that drafted the player from Sudbury Wolves (OHA)?
SQL: SELECT "nhl_team" FROM "round_four" WHERE "college_junior_club_team"='Sudbury Wolves (OHA)';

Question: What's the number of positions of the player playing in Minnesota North Stars?
SQL: SELECT COUNT("position") FROM "round_four" WHERE "nhl_team"='Minnesota North Stars';

Question: What's the smallest pick number of a player playing in Minnesota North Stars?
SQL: SELECT MIN("pick_num") FROM "round_four" WHERE "nhl_team"='Minnesota North Stars';

Question: What's the nationality of the player coming from Edmonton Oil Kings (WCHL)?
SQL: SELECT "nationality" FROM "round_four" WHERE "college_junior_club_team"='Edmonton Oil Kings (WCHL)';

Question: What's Steve Langdon's naitionality?
SQL: SELECT "nationality" FROM "round_four" WHERE "player"='Steve Langdon';