A teenage girl walks past another with a cellphone.
The teenage girl on the cellphone does not notice the other teenage girl.
The teenage might have noticed the other teenage girl.
exists e1 s1 x1 x2 x3 x4.(for(e1,s1) & Theme(s1,x1) & a_past(s1) & Theme(e1,x3) & Actor(e1,x1) & v_walk(e1) & with(x3,x4) & n_cellphone(x4) & n_thing(x3) & n_girl(x1) & of(x1,x2) & n_teenage(x2))
exists s1 x1 x2 x3 x4.(-(x3 = x1) & n_girl(x1) & n_girl(x1) & of(x1,x4) & n_teenage(x4) & n_girl(x3) & of(x3,x4) & n_cellphone(x2) & a_teenage(s1) & Theme(s1,x1) & -exists e1.(Theme(e1,x3) & Actor(e1,x1) & v_notice(e1)) & on(x1,x2))