People are going up and down on three escalators.
Some are using transport device
Some implies that there are more people that are not using the transport device.
exists e2 e1 s1 x1 x2 x3.(on(e2,x3) & n_escalator(x3) & card_eq_3(x3) & r_down(e2) & Actor(e2,x2) & v_go(e2) & n_people(x2) & a_up(s1) & Manner(e1,s1) & Actor(e1,x1) & v_go(e1) & n_people(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_use(e1) & n_device(x2) & of(x2,x3) & n_transport(x3) & n_thing(x1))