People walking in front of heavily painted wall.
people are walking at an art museum
Painted walls don't make an art museum.
exists e2 e1 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 x2 x3.(at(e1,x2) & n_museum(x2) & of(x2,x3) & n_art(x3) & Actor(e1,x1) & v_walk(e1) & n_people(x1))