CREATE TABLE table_name_18 (college_junior_club_team__league_ VARCHAR, player VARCHAR, round VARCHAR, position VARCHAR, nationality VARCHAR)

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'?
SELECT college_junior_club_team__league_ FROM table_name_18 WHERE position = "defence" AND nationality = "canada" AND round < 5 AND player = "josiah didier"
SELECT "college_junior_club_team__league_" FROM "table_name_18" WHERE "canada" = "nationality" AND "defence" = "position" AND "josiah didier" = "player" AND "round" < 5