Three dogs run along a grassy yard.
Three cats running in the grass.
There can either be dogs or cats, not both.
exists e1 s1 x1 x2.(along(e1,x2) & n_yard(x2) & a_grassy(s1) & Theme(s1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1) & card_eq_3(x1))
exists e1 x1 x2 x3.(n_grass(x3) & a_topic(x1) & in(e1,x3) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_cat(x1) & card_eq_3(x1))