A group of police officers in riot gear.
The police officers are in the police station doing desk work.
The police are either in riot gear or at the police station.
exists x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x4) & n_gear(x4) & of(x4,x5) & n_riot(x5) & of(x1,x2) & n_officer(x2) & of(x2,x3) & n_police(x3) & n_group(x1))
exists p1 x1 x2 x3.(n_station(x3) & of(x3,x2) & n_police(x2) & n_police(x2) & n_officer(x1) & of(x1,x2) & exists e1 x4 x5 x6.(in(x1,x3) & Theme(e1,x5) & Actor(e1,x4) & v_do(e1) & n_work(x5) & of(x5,x6) & n_desk(x6) & (x3 = x4)))