Subway workers are working near the train tracks at the station.
the workers are working
Subway workers are workers.
exists e1 x1 x2 x3 x4 x5.(n_station(x5) & n_track(x3) & of(x3,x4) & n_train(x4) & at(e1,x5) & near(e1,x3) & Actor(e1,x1) & v_work(e1) & n_worker(x1) & (x1 = x2) & ne_nam_subway(x2))
exists e1 x1.(n_worker(x1) & Actor(e1,x1) & v_work(e1))