Eight people meditating on the beach.
Nobody is meditating
Its either eight people or nobody.
exists e1 x1 x2 x3.(n_beach(x3) & a_topic(x1) & on(e1,x3) & Actor(e1,x2) & v_meditate(e1) & (x1 = x2) & n_people(x1) & card_eq_8(x1))
-exists e1 x1.(Actor(e1,x1) & v_meditate(e1) & n_person(x1))