Construction workers are working in a tunnel.
The people are working in a tunnel.
Workers are people.
exists e1 x1 x2 x3.(in(e1,x3) & n_tunnel(x3) & Actor(e1,x1) & v_work(e1) & n_worker(x1) & of(x1,x2) & n_construction(x2))
exists e1 x1 x2.(n_people(x1) & in(e1,x2) & n_tunnel(x2) & Actor(e1,x1) & v_work(e1))