Two college boys posing for a picture at a party at night.
Two boys are at a party.
The two college boys are the boys at a party.
exists e1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & at(e1,x6) & n_night(x6) & for(e1,x4) & at(x4,x5) & n_party(x5) & n_picture(x4) & Actor(e1,x3) & v_pose(e1) & (x1 = x3) & n_boy(x1) & of(x1,x2) & n_college(x2) & card_eq_2(x1))
exists p1 x1.(exists x2.(at(x1,x2) & n_party(x2)) & n_boy(x1) & card_eq_2(x1))