CREATE TABLE table_name_48 (race VARCHAR(255), course VARCHAR(255), jockey VARCHAR(255), margin VARCHAR(255))
what is the race when the jockey is frankie dettori, the margin is more than 3 and the course is yarmouth?
    
SQL: SELECT race FROM table_name_48 WHERE jockey = "frankie dettori" AND margin > 3 AND course = "yarmouth"