People waiting outside a building next to a mural.
People are standing beside a mural.
People standing beside a mural is waiting outside.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & outside(e1,x3) & to(x4,x5) & n_mural(x5) & next(x3,x4) & n_thing(x4) & n_building(x3) & Actor(e1,x2) & v_wait(e1) & (x1 = x2) & n_people(x1))
exists e1 x1 x2.(beside(e1,x2) & n_mural(x2) & Actor(e1,x1) & v_stand(e1) & n_people(x1))