People walking in the platform.
People are walking to the exit.
You can not infer they are walking to the exit.
exists e1 x1 x2 x3.(n_platform(x3) & a_topic(x1) & in(e1,x3) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_people(x1))
exists e1 x1 x2.(n_exit(x2) & to(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1))