premise: two girls sitting by a tree while playing.
hypothesis: They are at a park.
explanation_1: You can not infer they are at a park.
explanation_2: The fact that the girls are sitting by a tree and playing does not imply that they are at a park.
explanation_3: Answer: Just because the child is in the park it doesn"t mean she is playing
premise_logic: exists e2 e1 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.(n_thing(x1) & exists x2.(at(x1,x2) & n_park(x2)))