Three construction workers in bright vests prepare road to be worked on.
It is dark outside.
Construction workers in bright vests prepare road to be worked on, but not only when it is dark outside.
exists e1 p1 s1 x1 x2 x3 x4.(Topic(e1,p1) & Recipient(e1,x4) & Actor(e1,x1) & v_prepare(e1) & exists e2 s2.(a_on(s2) & Manner(e2,s2) & Theme(e2,x4) & v_work(e2)) & n_road(x4) & in(x1,x3) & n_vest(x3) & a_bright(s1) & Theme(s1,x3) & n_worker(x1) & of(x1,x2) & n_construction(x2) & card_eq_3(x1))
exists p1 x1.(n_thing(x1) & exists s1 x2.((x1 = x2) & n_outside(x2) & a_dark(s1) & Theme(s1,x2)))