A festival is going on in the streets.
It is a holiday in the city
It may not be a holiday in city
exists e1 s1 x1 x2.(n_street(x2) & in(e1,x2) & a_on(s1) & Manner(e1,s1) & Actor(e1,x1) & v_go(e1) & n_festival(x1))
exists p1 x1 x3.(n_city(x3) & n_thing(x1) & exists x2.((x1 = x2) & in(x2,x3) & n_holiday(x2)))