Three people are sleeping in a mass-transit vehicle.
Three people are dancing in a mass-transit vehicle
sleeping and dancing are not the same.
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.(in(e1,x2) & n_vehicle(x2) & of(x2,x3) & n_mass-transit(x3) & Actor(e1,x1) & v_dance(e1) & n_people(x1) & card_eq_3(x1))