A bunch of people near a christmas type tree.
A bunch of people at a party.
Being near a Christmas tree doesn't make it a party.
exists x1 x2 x3 x4 x5.(a_topic(x1) & near(x1,x3) & n_tree(x3) & of(x3,x5) & n_type(x5) & of(x3,x4) & n_christmas(x4) & of(x1,x2) & n_people(x2) & n_bunch(x1))
exists x1 x2 x3.(a_topic(x1) & at(x1,x3) & n_party(x3) & of(x1,x2) & n_people(x2) & n_bunch(x1))