premise: two girls sitting by a tree while playing.
hypothesis: There are two girls.
explanation_1: Two girls is a paraphrase of there are two girls.
explanation_2: while playing, two girls sitting by a tree.
explanation_3: Two girls sitting means there are two girls.
premise_logic: exists e1 e2 x1 x2 x3.(a_topic(x1) & while(e1,e2) & Actor(e2,x2) & v_play(e2) & by(e1,x3) & n_tree(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_girl(x1) & card_eq_2(x1))
hypothesis_logic: exists p1 x1 x2.((x1 = x2) & n_girl(x2) & card_eq_2(x2))
premise_sim: exists e1 e2 x1 x2 x3.(while(e1,e2) & v_sit(e1) & v_play(e2) & n_tree(x3) & n_girl(x1) & card_eq_2(x1) & by(e1,x3) & a_topic(x1) & Actor(e2,x2) & Actor(e1,x2) & (x1 = x2))
hypothesis_sim: exists x1 x2.(n_girl(x2) & card_eq_2(x2) & (x1 = x2))