A group of people standing on the lawn in front of a building.
The building is a police station.
The idea that this building is a police station cannot be inferred. Not all buildings are police stations.
exists e1 x1 x2 x3 x4 x5 x6.(n_lawn(x4) & a_topic(x1) & of(x1,x2) & in(e1,x5) & of(x5,x6) & n_building(x6) & n_front(x5) & on(e1,x4) & Actor(e1,x3) & v_stand(e1) & (x2 = x3) & n_people(x2) & n_group(x1))
exists p1 x1.(n_building(x1) & exists x2 x3.((x1 = x2) & n_station(x2) & of(x2,x3) & n_police(x3)))