CREATE TABLE table_name_56 (role VARCHAR, director VARCHAR, title VARCHAR)

What role did John Wayne play in The Trail Beyond, directed by R.N. Bradbury?
SELECT role FROM table_name_56 WHERE director = "r.n. bradbury" AND title = "the trail beyond"
SELECT "role" FROM "table_name_56" WHERE "director" = "r.n. bradbury" AND "the trail beyond" = "title"