premise: A person surfs through a wave as it crashes down.
hypothesis: A person is outdoors.
explanation_1: A person surfs through a wave must be outdoors.
explanation_2: If a person surfs through a wave, they have to be outdoors.
explanation_3: One can only surf waves outdoors.
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 p1 x1.(exists x2.((x1 = x2) & n_outdoors(x2)) & n_person(x1))