People in Asia on a busy escalator.
People in Asia walking up stairs.
An escalator is in motion, while stairs are sedentary.
exists s1 x1 x2 x3.(ne_geo_asia(x2) & a_topic(x1) & on(x1,x3) & n_escalator(x3) & a_busy(s1) & Theme(s1,x3) & in(x1,x2) & n_people(x1))
exists e1 s1 x1 x2 x3 x4.(ne_geo_asia(x2) & a_topic(x1) & a_up(s1) & Manner(e1,s1) & Theme(e1,x4) & Actor(e1,x3) & v_walk(e1) & n_stair(x4) & (x1 = x3) & in(x1,x2) & n_people(x1))