premise: A girl on a swing in the park.
hypothesis: A girl was singing while playing on the swing.
explanation_1: A girl does not have to be singing to be on a swing.  The girl can be on the swing without singing.
premise_logic: exists x1 x2 x3.(n_park(x3) & a_topic(x1) & on(x1,x2) & in(x2,x3) & n_swing(x2) & n_girl(x1))
hypothesis_logic: exists e1 e2 x1 x2.(n_swing(x2) & while(e1,e2) & on(e2,x2) & Actor(e2,x1) & v_play(e2) & Actor(e1,x1) & v_sing(e1) & n_girl(x1))
premise_sim: exists x1 x2 x3.(on(x1,x2) & n_swing(x2) & n_park(x3) & n_girl(x1) & in(x2,x3) & a_topic(x1))
hypothesis_sim: exists e1 e2 x1 x2.(while(e1,e2) & v_sing(e1) & v_play(e2) & on(e2,x2) & n_swing(x2) & n_girl(x1) & Actor(e2,x1) & Actor(e1,x1))