Construction workers are working underground.
Construction workers are exhausted from working.
Construction workers can work underground without being exhausted.
exists e1 s1 x1 x2.(a_underground(s1) & Manner(e1,s1) & Actor(e1,x1) & v_work(e1) & n_worker(x1) & of(x1,x2) & n_construction(x2))
exists e2 e1 x1 x2 x3.(from(e1,e2) & Actor(e2,x3) & v_work(e2) & Theme(e1,x1) & v_exhaust(e1) & n_worker(x1) & of(x1,x2) & n_construction(x2))