The dog is waiting for his master.
A dog sits and waits.
Not all dogs sits.
exists e1 x1 x2.(n_master(x2) & of(x2,x1) & n_male(x1) & n_dog(x1) & for(e1,x2) & Actor(e1,x1) & v_wait(e1))
exists e2 e1 x1 x2.(Actor(e2,x2) & v_wait(e2) & n_dog(x2) & Actor(e1,x1) & v_sit(e1) & n_dog(x1))