The man in the black jacket is waiting.
A man is waiting for his ride.
A man could be waiting for anything, not just a ride.
exists e1 s1 x1 x2.(n_jacket(x2) & a_black(s1) & Theme(s1,x2) & n_man(x1) & Actor(e1,x1) & v_wait(e1) & in(x1,x2))
exists e1 x1 x2.(for(e1,x2) & n_ride(x2) & of(x2,x1) & n_male(x1) & Actor(e1,x1) & v_wait(e1) & n_man(x1))