A group of people in costume gather outdoors on Halloween.
Some people are dressed up for Halloween.
A group of people dressed up for Halloween to go outdoors to enjoy the day.
exists e1 x1 x2 x3 x4 x5.(ne_geo_halloween(x5) & on(e1,x5) & Theme(e1,x4) & Actor(e1,x1) & v_gather(e1) & n_outdoors(x4) & of(x1,x2) & in(x2,x3) & n_costume(x3) & n_people(x2) & n_group(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_people(x1))