Men in orange suits watching a machine dig near what looks to be subway tracks.
The workers stand by in hazmat suits as the machine digs up the contamination.
It does not indicate whether the men are in hazmat suites or whether the machine digs up contamination.
exists x1 x2 x3 x4 x5 x6.(a_topic(x1) & in(x1,x2) & exists e2 e1 p1 x7.(n_thing(x7) & Theme(e2,x5) & Actor(e2,x4) & v_watch(e2) & near(x5,x7) & Topic(e1,p1) & Actor(e1,x7) & v_look(e1) & exists p2 x8 x9.((x7 = x8) & n_track(x8) & of(x8,x9) & n_subway(x9))) & n_dig(x5) & of(x5,x6) & n_machine(x6) & (x2 = x4) & n_suit(x2) & of(x2,x3) & n_orange(x3) & n_man(x1))
exists e1 p1 s1 x1 x2 x3 x4 x5.(n_contamination(x5) & n_machine(x4) & n_worker(x1) & exists e2 s2.(a_up(s2) & Manner(e2,s2) & Theme(e2,x5) & Actor(e2,x4) & v_dig(e2)) & as(e1,p1) & in(e1,x2) & n_suit(x2) & of(x2,x3) & n_hazmat(x3) & a_by(s1) & Manner(e1,s1) & Actor(e1,x1) & v_stand(e1))