A group of people in front of a house.
The group of people are outside.
Both have a group.
exists x1 x2 x3 x4.(a_topic(x1) & of(x1,x2) & in(x2,x3) & of(x3,x4) & n_house(x4) & n_front(x3) & n_people(x2) & n_group(x1))
exists s1 x1 x2.(n_group(x1) & Theme(s1,x1) & a_outside(s1) & of(x1,x2) & n_people(x2))