premise: Black greyhound dog racing down a track.
hypothesis: The dog is asleep in the park.
explanation_1: the dog is either asleep or racing.
explanation_2: He cannot be asleep and racing simultaneously.
explanation_3: A dog cannot be racing and asleep at the same time.
premise_logic: exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & a_down(s1) & Manner(e1,s1) & Theme(e1,x5) & Actor(e1,x4) & v_race(e1) & n_track(x5) & (x1 = x4) & n_dog(x1) & of(x1,x3) & n_greyhound(x3) & (x1 = x2) & ne_nam_black(x2))
hypothesis_logic: exists s1 x1 x2.(n_park(x2) & n_dog(x1) & in(s1,x2) & Theme(s1,x1) & a_asleep(s1))