What is College/Junior/Club Team (League), when Position is "Defence", when Nationality is "Canada", when Round is less than 5, and when Player is "Josiah Didier"?
CREATE TABLE "2011_draft_picks" (
  "round" real,
  "player" text,
  "position" text,
  "nationality" text,
  "college_junior_club_team_league" text
);
SELECT "college_junior_club_team_league" FROM "2011_draft_picks" WHERE "position"='defence' AND "nationality"='canada' AND "round"<5 AND "player"='josiah didier';