Three people walk by a mural of a cow.
People walk by artwork.
People can refer to any amount of persons, and a mural of a cow is a form of artwork.
exists e1 x1 x2 x3 x4.(a_topic(x1) & Actor(e1,x3) & of(x3,x4) & n_cow(x4) & n_mural(x3) & Theme(e1,x2) & v_walk(e1) & (x1 = x2) & n_people(x1) & card_eq_3(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Actor(e1,x3) & n_artwork(x3) & Theme(e1,x2) & v_walk(e1) & (x1 = x2) & n_people(x1))