premise: A black dog is swimming with a ball in his mouth.
hypothesis: The dog is asleep in the grass.
explanation_1: A dog swimming cannot be asleep.
explanation_2: If a dog is swimming it can not be asleep.
explanation_3: If one is asleep then one cannot be swimming.
premise_logic: exists e1 s1 x1 x2 x3.(with(e1,x2) & in(x2,x3) & n_mouth(x3) & of(x3,x1) & n_male(x1) & n_ball(x2) & Actor(e1,x1) & v_swim(e1) & n_dog(x1) & a_black(s1) & Theme(s1,x1))
hypothesis_logic: exists s1 x1 x2.(n_grass(x2) & n_dog(x1) & in(s1,x2) & Theme(s1,x1) & a_asleep(s1))
premise_sim: exists e1 s1 x1 x2 x3.(with(e1,x2) & v_swim(e1) & of(x3,x1) & n_mouth(x3) & n_male(x1) & n_dog(x1) & n_ball(x2) & in(x2,x3) & a_black(s1) & Theme(s1,x1) & Actor(e1,x1))
hypothesis_sim: exists s1 x1 x2.(n_grass(x2) & n_dog(x1) & in(s1,x2) & a_asleep(s1) & Theme(s1,x1))