A boy leaps over a man in a lake.
Two girls are ice fishing.
If the two girls are ice fishing, there is no way a boy can leaps over a man in a frozen lake.
exists e1 x1 x2 x3.(over(e1,x2) & in(x2,x3) & n_lake(x3) & n_man(x2) & Actor(e1,x1) & v_leap(e1) & n_boy(x1))
exists p1 x1.(exists x2 x3.((x1 = x2) & n_fishing(x2) & of(x2,x3) & n_ice(x3)) & n_girl(x1) & card_eq_2(x1))