Six small children sitting at a desk.
There are six children on a roller coaster
A roller coaster is not a desk.
exists e1 s1 x1 x2 x3.(a_topic(x1) & at(e1,x3) & n_desk(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_child(x1) & a_small(s1) & Theme(s1,x1) & card_eq_6(x1))
exists p1 x1 x2 x3 x4.((x1 = x2) & on(x2,x3) & n_coaster(x3) & of(x3,x4) & n_roller(x4) & n_child(x2) & card_eq_6(x2))