Formally dressed family watching a couple cut a cake.
People watching television.
watching television is contradictory to watching a  couple out a cake
exists e3 e1 e2 x1 x2 x3 x4.(Theme(e3,x4) & Actor(e3,x1) & v_cut(e3) & n_cake(x4) & Theme(e2,x3) & Actor(e2,x2) & v_watch(e2) & n_couple(x3) & (x1 = x2) & n_family(x1) & Theme(e1,x1) & v_dress(e1) & r_formally(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_watch(e1) & n_television(x3) & (x1 = x2) & n_people(x1))