premise: A little boy smiles while playing in the dirt.
hypothesis: Nobody is smiling.
explanation_1: a little boy is not nobody and he is smiling
explanation_2: Either nobody is smiling or the little boy is smiling
explanation_3: If the little boy smiles then somebody is smiling.
premise_logic: exists e1 e2 s1 x1 x2.(n_dirt(x2) & while(e1,e2) & in(e2,x2) & Actor(e2,x1) & v_play(e2) & Actor(e1,x1) & v_smile(e1) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
hypothesis_logic: -exists e1 x1.(Actor(e1,x1) & v_smile(e1) & n_person(x1))
premise_sim: exists e1 e2 s1 x1 x2.(while(e1,e2) & v_smile(e1) & v_play(e2) & n_dirt(x2) & n_boy(x1) & in(e2,x2) & a_little(s1) & Theme(s1,x1) & Actor(e2,x1) & Actor(e1,x1))
hypothesis_sim: all e1 x1.(-v_smile(e1) | -n_person(x1) | -Actor(e1,x1))