Three people are on a sidewalk.
Three friends are hanging outside school.
The people are not necessarily friends and they be in front of a different building and not outside school.
exists p1 x1.(exists x2.(on(x1,x2) & n_sidewalk(x2)) & n_people(x1) & card_eq_3(x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_hang(e1) & n_school(x2) & a_outside(s1) & Theme(s1,x2) & n_friend(x1) & card_eq_3(x1))