A man rolling up a hose at a train station.
A maintenance man is working at the train statioin.
The man is rolling up a hose at a train station but that doesn't necessarily imply that he is a maintenance man.
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & at(e1,x4) & n_station(x4) & of(x4,x5) & n_train(x5) & a_up(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_roll(e1) & n_hose(x3) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3 x4.(n_statioin(x3) & of(x3,x4) & n_train(x4) & at(e1,x3) & Actor(e1,x1) & v_work(e1) & n_man(x1) & of(x1,x2) & n_maintenance(x2))