Seven men in orange work at night on a railway, next to a train.
The men are working.
Working on a railway is working, or working is the necessary condition.
exists s1 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & in(x1,x2) & on(x2,x5) & to(s1,x7) & n_train(x7) & Theme(s1,x6) & a_next(s1) & (x5 = x6) & n_railway(x5) & at(x2,x4) & n_night(x4) & n_work(x2) & of(x2,x3) & n_orange(x3) & n_man(x1) & card_eq_7(x1))
exists e1 x1.(n_man(x1) & Actor(e1,x1) & v_work(e1))