People standing and watching on a bust street.
People are watching on a street for an event to begin.
Not everyone standing on a street are waiting for an event to begin.
exists e2 e1 x1 x2 x3 x4 x5 x6.(on(e2,x5) & n_street(x5) & of(x5,x6) & n_bust(x6) & Actor(e2,x4) & v_watch(e2) & n_people(x4) & on(e1,x2) & n_street(x2) & of(x2,x3) & n_bust(x3) & Actor(e1,x1) & v_stand(e1) & n_people(x1))
exists e1 p1 x1 x2 x3 x4.(Topic(e1,p1) & exists e2.(Actor(e2,x1) & v_begin(e2)) & for(e1,x4) & n_event(x4) & on(e1,x3) & n_street(x3) & Actor(e1,x2) & v_watch(e1) & n_people(x2) & n_people(x1))