people go up the escalator.
The people are afraid of the escalator.
People who are afraid of the escalator would usually avoid using it.
exists e1 s1 x1 x2.(n_escalator(x2) & a_up(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_go(e1) & n_people(x1))
exists s1 x1 x2.(n_escalator(x2) & n_people(x1) & of(s1,x2) & Theme(s1,x1) & a_afraid(s1))