premise: Two girls laying in the grass smile as their picture is taken.
hypothesis: The girls are running a race.
explanation_1: The girls cannot be both laying in the grass and running a race at the same time.
explanation_2: The girls cannot be laying and running simultaneously.
explanation_3: If they are laying in the grass, they cannot be running a race at the same time.
premise_logic: exists e2 e1 p1 x1 x2 x3 x4.(n_picture(x4) & of(x4,x3) & n_thing(x3) & n_grass(x3) & exists e3.(Theme(e3,x4) & v_take(e3)) & as(e2,p1) & Actor(e2,x1) & v_smile(e2) & in(e1,x3) & Actor(e1,x2) & v_lay(e1) & (x1 = x2) & n_girl(x1) & card_eq_2(x1))
hypothesis_logic: exists e1 x1 x2.(n_girl(x1) & Theme(e1,x2) & Actor(e1,x1) & v_run(e1) & n_race(x2))