The traffic lights are painted yellow
The traffic lights are working.
They may not be working correctly.
exists e1 p1 x1 x2.(n_light(x1) & of(x1,x2) & n_traffic(x2) & exists s1.(Theme(s1,x1) & a_yellow(s1)) & Recipient(e1,p1) & Topic(e1,x1) & v_paint(e1))
exists e1 x1 x2.(n_light(x1) & of(x1,x2) & n_traffic(x2) & Actor(e1,x1) & v_work(e1))