premise: The surfer crouches low and rides the wave.
hypothesis: A person surfs.
explanation_1: A person that surfs is a surfer.
explanation_2: crouches low and rides the wave is inferred as surfs.
explanation_3: A surfer is the person that surfs.
premise_logic: exists e1 e2 p1 x1 x2.(n_wave(x2) & n_surfer(x1) & Theme(e2,x2) & Actor(e2,x1) & v_ride(e2) & exists s1.(Theme(s1,x1) & a_low(s1)) & Topic(e1,p1) & Actor(e1,x1) & v_crouch(e1))
hypothesis_logic: exists e1 x1.(Actor(e1,x1) & v_surf(e1) & n_person(x1))
premise_sim: exists e1 e2 p1 x1 x2.(v_ride(e2) & v_crouch(e1) & n_wave(x2) & n_surfer(x1) & exists s1.(a_low(s1) & Theme(s1,x1)) & Topic(e1,p1) & Theme(e2,x2) & Actor(e2,x1) & Actor(e1,x1))
hypothesis_sim: exists e1 x1.(v_surf(e1) & n_person(x1) & Actor(e1,x1))