a group of police officers patroling the streets with a building in the background
All the police officers are currently at the station.
One can not be at the station and patroling the streets.
exists e1 x1 x2 x3 x4 x5 x6 x7.(n_background(x7) & n_street(x5) & a_topic(x1) & with(e1,x6) & in(x6,x7) & n_building(x6) & Theme(e1,x5) & Actor(e1,x4) & v_patrole(e1) & (x1 = x4) & of(x1,x2) & n_officer(x2) & of(x2,x3) & n_police(x3) & n_group(x1))
exists x2 x3 x4.(n_station(x4) & n_officer(x2) & of(x2,x3) & n_police(x3) & all x1.((x1 = x2) -> exists p1 s1.(a_currently(s1) & Manner(p1,s1) & at(x1,x4))))