A man wearing a red backpack is standing next to a graffiti covered wall.
A homeless man stands outside.
Just because a man is wearing a red backpack it does not mean that he is homeless. Just because that man is standing next to a graffiti covered wall it does not mean that he is outside.
exists e1 e3 e2 s1 x1 x2 x3 x4 x5.(to(e2,x4) & n_wall(x4) & Theme(e3,x4) & v_cover(e3) & of(x4,x5) & n_graffitus(x5) & r_next(e2) & Actor(e2,x1) & v_stand(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_backpack(x3) & a_red(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1))
exists e1 p1 s1 x1.(exists s2.(Theme(s2,x1) & a_outside(s2)) & Topic(e1,p1) & Actor(e1,x1) & v_stand(e1) & n_man(x1) & a_homeless(s1) & Theme(s1,x1))