premise: Two girls playing catch on a lawn
hypothesis: Two girls are walking beside a pond with ducks and swans.
explanation_1: One cannot be playing and walking simultaneously.
explanation_2: One cannot be playing catch and walking at the same time.  A lawn denotes being next to a building and not a pond.
explanation_3: girls can't be walking if they are playing catch
premise_logic: exists e1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x4) & n_lawn(x4) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_catch(x3) & (x1 = x2) & n_girl(x1) & card_eq_2(x1))
hypothesis_logic: exists e1 x1 x2 x3 x4 x5.(with(e1,x3) & subset_of(x5,x3) & n_swan(x5) & subset_of(x4,x3) & n_duck(x4) & beside(e1,x2) & n_pond(x2) & Actor(e1,x1) & v_walk(e1) & n_girl(x1) & card_eq_2(x1))
premise_sim: exists e1 x1 x2 x3 x4.(v_play(e1) & on(e1,x4) & n_lawn(x4) & n_girl(x1) & n_catch(x3) & card_eq_2(x1) & a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & (x1 = x2))
hypothesis_sim: exists e1 x1 x2 x3 x4 x5.(with(e1,x3) & v_walk(e1) & subset_of(x5,x3) & subset_of(x4,x3) & n_swan(x5) & n_pond(x2) & n_girl(x1) & n_duck(x4) & card_eq_2(x1) & beside(e1,x2) & Actor(e1,x1))