A group of people talking among themselves.
People are talking in outdoor.
people talking among themselves means they are talking in outdoor
exists e1 x1 x2 x3.(a_topic(x1) & of(x1,x2) & among(e1,x1) & n_group(x1) & Actor(e1,x3) & v_talk(e1) & (x2 = x3) & n_people(x2) & n_group(x1))
exists e1 x1 x2.(in(e1,x2) & n_outdoor(x2) & Actor(e1,x1) & v_talk(e1) & n_people(x1))