premise: There is a man surfing at night.
hypothesis: A person on a surfboard in the evening.
explanation_1: The person on the surfboard in the evening is probably the man still surfing at night.
premise_logic: exists p1 x1 x2 x3 x4.((x1 = x2) & at(x2,x4) & n_night(x4) & n_surfing(x2) & of(x2,x3) & n_man(x3))
hypothesis_logic: exists x1 x2 x3.(n_evening(x3) & a_topic(x1) & on(x1,x2) & in(x2,x3) & n_surfboard(x2) & n_person(x1))
premise_sim: exists x1 x2 x3 x4.(of(x2,x3) & n_surfing(x2) & n_night(x4) & n_man(x3) & at(x2,x4) & (x1 = x2))
hypothesis_sim: exists x1 x2 x3.(on(x1,x2) & n_surfboard(x2) & n_person(x1) & n_evening(x3) & in(x2,x3) & a_topic(x1))