Four people talking during a shopping trip.
Four people are asleep on the couch.
four people cannot be shopping if they are all asleep on a couch.
exists e1 x1 x2 x3 x4.(a_topic(x1) & during(e1,x3) & n_trip(x3) & of(x3,x4) & n_shopping(x4) & Actor(e1,x2) & v_talk(e1) & (x1 = x2) & n_people(x1) & card_eq_4(x1))
exists s1 x1 x2.(n_couch(x2) & on(s1,x2) & Theme(s1,x1) & a_asleep(s1) & n_people(x1) & card_eq_4(x1))