Construction workers working on a highway at night as people look to see what they are doing.
Some people are out at night watching construction workers.
Construction workers working on a highway at night as people look to see what they are doing simply means  people are out at night watching construction workers
exists e1 p1 x1 x2 x3 x4.(exists e2 p2 x5 x6.(Topic(e2,p2) & exists e3 e4 x7.(n_thing(x7) & Theme(e4,x7) & Actor(e4,x5) & v_see(e4) & Theme(e3,x7) & Actor(e3,x1) & v_do(e3)) & Actor(e2,x6) & v_look(e2) & n_people(x6) & n_people(x5)) & n_thing(x1) & as(e1,p1) & at(e1,x4) & n_night(x4) & on(e1,x3) & n_highway(x3) & Actor(e1,x1) & v_work(e1) & n_worker(x1) & of(x1,x2) & n_construction(x2))
exists e1 s1 x1 x2 x3 x4.(for(s1,e1) & Theme(e1,x3) & Actor(e1,x1) & v_watch(e1) & n_worker(x3) & of(x3,x4) & n_construction(x4) & at(s1,x2) & n_night(x2) & Theme(s1,x1) & a_out(s1) & n_people(x1))