People walking in front of heavily painted wall.
people are walking
If one sees people walking then one could say that the said people are walking.
exists e1 e2 x1 x2 x3 x4.(a_topic(x1) & in(e1,x3) & of(x3,x4) & n_wall(x4) & Theme(e2,x4) & v_paint(e2) & r_heavily(x4) & n_front(x3) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_people(x1))
exists e1 x1.(Actor(e1,x1) & v_walk(e1) & n_people(x1))