A large black dog chews on a stick.
A dog enjoys a stick he just caught playing fetch.
Just because a dog chews on a stick it does not mean the dog enjoys it or that he caught it playing fetch.  A dog does not have to be large or black.
exists s1 s2 x1 x2 x3.(a_topic(x1) & on(x1,x3) & n_stick(x3) & n_chew(x1) & of(x1,x2) & n_dog(x2) & a_black(s2) & Theme(s2,x1) & a_large(s1) & Theme(s1,x1))
exists e2 e3 e1 s1 s2 x1 x2 x3.(Theme(e3,x2) & Actor(e3,x1) & v_enjoy(e3) & for(e1,e2) & a_fetch(s2) & Manner(e2,s2) & Actor(e2,x1) & v_play(e2) & a_just(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x1) & v_catch(e1) & (x2 = x3) & n_male(x1) & n_stick(x2) & n_dog(x1))