premise: A person surfs through a wave as it crashes down.
hypothesis: A person is scared of the waves.
explanation_1: The event described in sentence 1 would be frightening, but that doesn't mean the person experiencing the event is scared of the waves. The fact that the person is surfing would indicate that he isn't afraid of the waves.
explanation_2: Not all persons surfing are scared of waves.
explanation_3: Just because a person surfs through a wave as it crashes down, doesn't mean the person is scared.
premise_logic: exists e1 p1 x1 x2.(exists e2 s1.(a_down(s1) & Manner(e2,s1) & Actor(e2,x1) & v_crash(e2)) & n_thing(x1) & as(e1,p1) & through(e1,x2) & n_wave(x2) & Actor(e1,x1) & v_surf(e1) & n_person(x1))
hypothesis_logic: exists e1 x1 x2.(n_wave(x2) & of(e1,x2) & Theme(e1,x1) & v_scare(e1) & n_person(x1))