Law enforcement standing in a doorway.
There are people in the doorway.
Law enforcement is a subset of people.
exists x1 x2 x3 x4.(a_topic(x1) & in(x1,x4) & n_doorway(x4) & n_standing(x1) & of(x1,x3) & n_enforcement(x3) & of(x1,x2) & n_law(x2))
exists p1 x1 x2.(n_doorway(x2) & in(p1,x2) & exists x3.((x1 = x3) & n_people(x3)))