A man with an orange vest next to a train works with a handheld device.
A construction worker is working on the tracks next to a train.
Not all men in orange vests are construction workers.
exists e1 s1 x1 x2 x3 x4 x5 x6.(with(e1,x6) & n_device(x6) & a_handheld(s1) & Theme(s1,x6) & Actor(e1,x1) & v_work(e1) & with(x1,x2) & to(x4,x5) & n_train(x5) & next(x2,x4) & n_thing(x4) & n_vest(x2) & of(x2,x3) & n_orange(x3) & n_man(x1))
exists e1 x1 x2 x3 x4 x5.(n_track(x3) & on(e1,x3) & to(x4,x5) & n_train(x5) & next(x3,x4) & n_thing(x4) & Actor(e1,x1) & v_work(e1) & n_worker(x1) & of(x1,x2) & n_construction(x2))