People walking down the street in costumes, including one of a hospital gown that exposes the buttocks.
It is Halloween.
Just because people walking down the street in costumes doesn't mean it's halloween.
exists e1 e2 x1 x2 x3 x4 x5 x6 x7 x8 x9.(n_buttock(x9) & n_street(x3) & a_topic(x1) & down(e1,x3) & in(x3,x4) & include(x4,x5) & of(x5,x6) & Theme(e2,x9) & Actor(e2,x8) & v_expose(e2) & (x6 = x8) & n_gown(x6) & of(x6,x7) & n_hospital(x7) & n_thing(x5) & card_eq_1(x5) & n_costume(x4) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_people(x1))
exists p1 x1 x2.(ne_org_halloween(x2) & n_thing(x1) & (x1 = x2))