Some party goers pose in their costumes at a halloween party.
some friends got together for a picture
A group of posing party goers may not be friends. Someone could have asked them to pose because their costumes go well together.
exists e1 x1 x2 x3 x4 x5.(at(e1,x4) & n_party(x4) & of(x4,x5) & n_halloween(x5) & in(e1,x3) & n_costume(x3) & of(x3,x1) & n_thing(x1) & Actor(e1,x1) & v_pose(e1) & n_goer(x1) & of(x1,x2) & n_party(x2))
exists e1 p1 x1 x2.(for(e1,x2) & n_picture(x2) & exists s1.(Theme(s1,x1) & a_together(s1)) & Topic(e1,p1) & Actor(e1,x1) & v_get(e1) & n_friend(x1))