Three construction workers in bright vests prepare road to be worked on.
A group of strangers talking inside the skyscraper.
The workers likely know each other so aren't strangers, and can't prepare the road and be talking inside a skyscraper at the same time.
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 e1 x1 x2 x3 x4.(n_skyscraper(x4) & a_topic(x1) & inside(e1,x4) & Actor(e1,x3) & v_talk(e1) & (x1 = x3) & of(x1,x2) & n_stranger(x2) & n_group(x1))