A bald man walking on a bridge.
The bald man is walking on a street.
A bridge and a street are not the same.
exists e1 s1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_bridge(x3) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_man(x1) & a_bald(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(n_man(x1) & a_bald(s1) & Theme(s1,x1) & on(e1,x2) & n_street(x2) & Actor(e1,x1) & v_walk(e1))