Several people with painted faces.
The people are wearing Halloween masks.
The people are either with painted faces or wearing Halloween masks.
exists s1 s2 x1 x2.(a_topic(x1) & with(x1,x2) & n_face(x2) & a_painted(s2) & Theme(s2,x2) & n_people(x1) & a_several(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(n_people(x1) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_mask(x2) & (x2 = x3) & ne_org_halloween(x3))