A man and woman are walking three dogs down a trail by the river.
A man and a woman are playing with their dogs in a yard.
They cannot be by the river and in a yard simultaneously.
exists e1 x1 x2 x3 x4 x5 x6.(n_river(x6) & by(e1,x6) & down(e1,x5) & n_trail(x5) & Theme(e1,x4) & Actor(e1,x1) & v_walk(e1) & n_dog(x4) & card_eq_3(x4) & n_woman(x3) & n_man(x2) & subset_of(x3,x1) & subset_of(x2,x1))
exists e1 x1 x2 x3 x4 x5.(in(e1,x5) & n_yard(x5) & with(e1,x4) & n_dog(x4) & of(x4,x2) & n_thing(x2) & Actor(e1,x1) & v_play(e1) & subset_of(x3,x1) & n_woman(x3) & subset_of(x2,x1) & n_man(x2))