Three people are sleeping in a mass-transit vehicle.
Three men are sleeping in a mass transit vehicle.
Not all people are men.
exists e1 x1 x2 x3.(in(e1,x2) & n_vehicle(x2) & of(x2,x3) & n_mass-transit(x3) & Actor(e1,x1) & v_sleep(e1) & n_people(x1) & card_eq_3(x1))
exists e1 x1 x2 x3 x4.(in(e1,x2) & n_vehicle(x2) & of(x2,x4) & n_transit(x4) & of(x2,x3) & n_mass(x3) & Actor(e1,x1) & v_sleep(e1) & n_man(x1) & card_eq_3(x1))