premise: Someone is in a speed boat on the water.
hypothesis: A boat is in a race.
explanation_1: Not all boats are in a race.
premise_logic: exists p1 x1 x4.(n_water(x4) & exists x2 x3.(in(x1,x2) & on(x2,x4) & n_boat(x2) & of(x2,x3) & n_speed(x3)) & n_person(x1))
hypothesis_logic: exists p1 x1.(exists x2.(in(x1,x2) & n_race(x2)) & n_boat(x1))
premise_sim: exists x1 x4.(n_water(x4) & n_person(x1) & exists x2 x3.(on(x2,x4) & of(x2,x3) & n_speed(x3) & n_boat(x2) & in(x1,x2)))
hypothesis_sim: exists x1.(n_boat(x1) & exists x2.(n_race(x2) & in(x1,x2)))