Workers in orange vests are working on the train platform.
THe people are sleeping.
One cannot be working while sleeping.
exists e1 x1 x2 x3 x4 x5.(n_platform(x4) & of(x4,x5) & n_train(x5) & on(e1,x4) & Actor(e1,x1) & v_work(e1) & in(x1,x2) & n_vest(x2) & of(x2,x3) & n_orange(x3) & n_worker(x1))
exists e1 s1 x1.(Actor(e1,x1) & v_sleep(e1) & n_people(x1) & a_the(s1) & Theme(s1,x1))