Three people are sleeping in a mass-transit vehicle.
There are people inside a machine.
mass-transit and machine could be the same thing
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 p1 x1 x2 x3.((x1 = x2) & inside(x2,x3) & n_machine(x3) & n_people(x2))