Four people going down from the electric stairs, wearing very warm clothes.
Some people on an escalator.
escalator is a form of electric stairs.
exists e1 e2 s1 s2 x1 x2 x3 x4.(n_stair(x3) & a_electric(s1) & Theme(s1,x3) & Theme(e2,x4) & Actor(e2,x1) & v_wear(e2) & n_clothes(x4) & a_warm(s2) & Theme(s2,x4) & r_very(x4) & from(e1,x3) & r_down(e1) & Actor(e1,x2) & v_go(e1) & (x1 = x2) & n_people(x1) & card_eq_4(x1))
exists x1 x2.(a_topic(x1) & on(x1,x2) & n_escalator(x2) & n_people(x1))