A teenage girl walks past another with a cellphone.
Two people who don't know each other
The teenage girl might know each other.
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 x1 x2.(a_topic(x1) & -all x3.(n_other(x3) -> exists e1.(Theme(e1,x3) & Actor(e1,x2) & v_know(e1))) & (x1 = x2) & n_people(x1) & card_eq_2(x1))