premise: Three people sitting on some stairs laughing.
hypothesis: The dogs are laughing.
explanation_1: The first story contains three laughing people, then it changes to dogs.
explanation_2: The first sentence says three people are laughing while the second says the dogs are laughing.
explanation_3: One cannot term dogs as three people.
premise_logic: exists e1 e2 x1 x2 x3.(a_topic(x1) & for(e1,e2) & Actor(e2,x2) & v_laugh(e2) & on(e1,x3) & n_stair(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_people(x1) & card_eq_3(x1))
hypothesis_logic: exists e1 x1.(n_dog(x1) & Actor(e1,x1) & v_laugh(e1))
premise_sim: exists e1 e2 x1 x2 x3.(v_sit(e1) & v_laugh(e2) & on(e1,x3) & n_stair(x3) & n_people(x1) & for(e1,e2) & card_eq_3(x1) & a_topic(x1) & Actor(e2,x2) & Actor(e1,x2) & (x1 = x2))
hypothesis_sim: exists e1 x1.(v_laugh(e1) & n_dog(x1) & Actor(e1,x1))