A police officer with a riot shield protects civilians.
A police officer is eating donuts at the station.
The police officer is either eating donuts, or protecting civilians.
exists e1 x1 x2 x3 x4 x5.(Theme(e1,x5) & Actor(e1,x1) & v_protect(e1) & n_civilian(x5) & with(x1,x3) & n_shield(x3) & of(x3,x4) & n_riot(x4) & n_officer(x1) & of(x1,x2) & n_police(x2))
exists e1 x1 x2 x3 x4.(n_station(x4) & at(e1,x4) & Theme(e1,x3) & Actor(e1,x1) & v_eat(e1) & n_donut(x3) & n_officer(x1) & of(x1,x2) & n_police(x2))