There are four people dressed in orange clothes walking down the street.
Four people are outside walking.
Walking down the street and outside walking are the same activity.
exists p1 x1 x7.(n_street(x7) & exists e1 e2 x2 x3 x4 x5 x6.((x1 = x2) & in(e1,x4) & down(e2,x7) & Actor(e2,x6) & v_walk(e2) & (x4 = x6) & n_clothes(x4) & of(x4,x5) & n_orange(x5) & Theme(e1,x3) & v_dress(e1) & (x2 = x3) & n_people(x2) & card_eq_4(x2)))
exists p1 x1.(exists s1 x2.((x1 = x2) & n_walking(x2) & a_outside(s1) & Theme(s1,x2)) & n_people(x1) & card_eq_4(x1))