A gang of people are performing on a street.
People are outdoors.
People are on tbe street means they are outdoors.
exists e1 x1 x2 x3.(on(e1,x3) & n_street(x3) & Actor(e1,x1) & v_perform(e1) & of(x1,x2) & n_people(x2) & n_gang(x1))
exists p1 x1.(exists x2.((x1 = x2) & n_outdoors(x2)) & n_people(x1))