A group of people stand on a sidewalk in the midst of a discussion.
People stand and talk on a sidewalk.
When people stand and talk they are in the midst of a discussion.
exists e1 x1 x2 x3 x4 x5.(n_midst(x4) & in(e1,x4) & of(x4,x5) & n_discussion(x5) & on(e1,x3) & n_sidewalk(x3) & Actor(e1,x1) & v_stand(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 e2 x1 x2 x3.(on(e2,x3) & n_sidewalk(x3) & Actor(e2,x2) & v_talk(e2) & n_people(x2) & Actor(e1,x1) & v_stand(e1) & n_people(x1))