An old man is walking past by a flower's shop.
An old man walks past a shop
Both sentence are talking about man.
exists e1 s1 x1 x2 x3 x4.(by(e1,x4) & n_shop(x4) & of(x4,x3) & n_flower(x3) & Time(e1,x2) & n_past(x2) & Actor(e1,x1) & v_walk(e1) & n_man(x1) & a_old(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(past(e1,x2) & n_shop(x2) & Actor(e1,x1) & v_walk(e1) & n_man(x1) & a_old(s1) & Theme(s1,x1))