premise: A horse and rider on a steeplechase course.
hypothesis: A jockey is riding a horse.
explanation_1: A horse rider is known as a jockey.
explanation_2: Horse being ridden
explanation_3: The jockey is riding a horse.
premise_logic: exists s1 x1 x2 x3 x4.(a_topic(s1) & subset_of(x2,s1) & on(x2,x3) & n_course(x3) & of(x3,x4) & n_steeplechase(x4) & n_rider(x2) & subset_of(x1,s1) & n_horse(x1))
hypothesis_logic: exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_horse(x2) & n_jockey(x1))