An elderly man, wearing a white hat, is sweeping a parking lot.
A woman is watching the man
A woman watching the man is not the same as a man sweeping a parking lot.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5.(Theme(e2,x4) & Actor(e2,x1) & v_sweep(e2) & n_lot(x4) & of(x4,x5) & n_parking(x5) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_hat(x3) & a_white(s2) & Theme(s2,x3) & (x1 = x2) & n_man(x1) & a_elderly(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_man(x2) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_woman(x1))