A black dog running across green grass.
An animal is playing
An black dog running across green grass doesn't necessarily mean he's playing.
exists e1 s1 s2 x1 x2 x3.(a_topic(x1) & across(e1,x3) & n_grass(x3) & a_green(s2) & Theme(s2,x3) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_dog(x1) & a_black(s1) & Theme(s1,x1))
exists e1 x1.(Actor(e1,x1) & v_play(e1) & n_animal(x1))