a man wearing a backpack is walking down a wall with water on both sids.
A man is walking.
in both sentences, a man is walking.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6.(n_sid(x6) & on(e2,x6) & with(e2,x5) & n_water(x5) & a_down(s1) & Manner(e2,s1) & Theme(e2,x4) & Actor(e2,x1) & v_walk(e2) & n_wall(x4) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_backpack(x3) & (x1 = x2) & n_man(x1))
exists e1 x1.(Actor(e1,x1) & v_walk(e1) & n_man(x1))