a dirty boy runs through the dirt.
A boy cries for his mother.
runs  is not the same as cries
exists e1 x1 x2 x3.(n_dirt(x3) & through(e1,x3) & Actor(e1,x1) & v_run(e1) & n_boy(x1) & of(x1,x2) & n_dirty(x2))
exists e1 x1 x2.(for(e1,x2) & n_mother(x2) & of(x2,x1) & n_male(x1) & Actor(e1,x1) & v_cry(e1) & n_boy(x1))