A boy is dressed as Freddy Krueger.
A boy is dressed up for Halloween.
Just because a boy is dressed as Freddy Krueger it doesn't automatically mean that he's dressed up for Halloween.
exists e1 x1 x2 x3.(ne_per_krueger(x2) & (x2 = x3) & ne_per_freddy(x3) & as(e1,x2) & Theme(e1,x1) & v_dress(e1) & n_boy(x1))
exists e1 s1 x1 x2.(ne_geo_halloween(x2) & a_up(s1) & Manner(e1,s1) & for(e1,x2) & Theme(e1,x1) & v_dress(e1) & n_boy(x1))