Three casually dressed Caucasians are sitting on a couch.
There is some furniture.
A couch is a type of furniture.
exists e2 e1 x1 x2.(on(e2,x2) & n_couch(x2) & Actor(e2,x1) & v_sit(e2) & n_caucasian(x1) & Theme(e1,x1) & v_dress(e1) & r_casually(x1) & card_eq_3(x1))
exists p1 x1 x2.((x1 = x2) & n_furniture(x2))