A person walking away from the bottom of an escalator.
The person is leaving the escalator.
The person is walking away from an escalator so he is leaving the escalator.
exists e1 x1 x2 x3 x4.(n_bottom(x3) & a_topic(x1) & from(e1,x3) & of(x3,x4) & n_escalator(x4) & r_away(e1) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_person(x1))
exists e1 x1 x2.(n_escalator(x2) & n_person(x1) & Theme(e1,x2) & Actor(e1,x1) & v_leave(e1))