A man using heavy machinery digs a hole in a street while another man looks on from a skid loader.
A couple construction workers working on a road
A man using machinery to dig a hole in the street while another looks on does imply that construction workers are working on a road.
exists e1 e2 p1 s1 x1 x2 x3 x4 x5.(exists e3 s2 x6 x7.(r_on(e3) & from(e3,x7) & n_loader(x7) & a_skid(s2) & Theme(s2,x7) & Actor(e3,x6) & v_look(e3) & n_man(x6) & -(x6 = x1)) & n_man(x1) & n_man(x1) & while(e2,p1) & in(e2,x5) & n_street(x5) & Theme(e2,x4) & Actor(e2,x1) & v_dig(e2) & n_hole(x4) & Theme(e1,x3) & Actor(e1,x2) & v_use(e1) & n_machinery(x3) & a_heavy(s1) & Theme(s1,x3) & (x1 = x2))
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & on(e1,x5) & n_road(x5) & Actor(e1,x4) & v_work(e1) & (x1 = x4) & n_worker(x1) & of(x1,x3) & n_construction(x3) & of(x1,x2) & n_couple(x2))