premise: Two girls talking while sitting on the stairs.
hypothesis: Two girls are happily talking.
explanation_1: Two girls talking while sitting on the stairs does not necessary that they are happily talking.
premise_logic: exists e2 e1 x1 x2 x3.(n_stair(x3) & a_topic(x1) & while(e1,e2) & on(e2,x3) & Actor(e2,x2) & v_sit(e2) & Actor(e1,x2) & v_talk(e1) & (x1 = x2) & n_girl(x1) & card_eq_2(x1))
hypothesis_logic: exists e1 s1 x1.(a_happily(s1) & Manner(e1,s1) & Actor(e1,x1) & v_talk(e1) & n_girl(x1) & card_eq_2(x1))
premise_sim: exists e2 e1 x1 x2 x3.(while(e1,e2) & v_talk(e1) & v_sit(e2) & on(e2,x3) & n_stair(x3) & n_girl(x1) & card_eq_2(x1) & a_topic(x1) & Actor(e2,x2) & Actor(e1,x2) & (x1 = x2))
hypothesis_sim: exists e1 s1 x1.(v_talk(e1) & n_girl(x1) & card_eq_2(x1) & a_happily(s1) & Manner(e1,s1) & Actor(e1,x1))