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

Question: How many positions are associated with the St. Louis Blues?
SQL: SELECT COUNT("position") FROM "round_four" WHERE "nhl_team"='St. Louis Blues';

Question: Which junior team is associated with an NHL pick by the Buffalo Sabres?
SQL: SELECT "college_junior_club_team" FROM "round_four" WHERE "nhl_team"='Buffalo Sabres';

Question: Which position was selected for by the Toronto Maple Leafs?
SQL: SELECT "position" FROM "round_four" WHERE "nhl_team"='Toronto Maple Leafs';