premise: A surfer rides the waves.
hypothesis: A person is surfing.
explanation_1: surfing and wave is the same because you can't surf without wave.
premise_logic: exists e1 x1 x2.(n_wave(x2) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_surfer(x1))
hypothesis_logic: exists e1 x1.(Actor(e1,x1) & v_surf(e1) & n_person(x1))
premise_sim: exists e1 x1 x2.(v_ride(e1) & n_wave(x2) & n_surfer(x1) & Theme(e1,x2) & Actor(e1,x1))
hypothesis_sim: exists e1 x1.(v_surf(e1) & n_person(x1) & Actor(e1,x1))