A group of workers wearing orange vest painting in a British rail station.
Some guys are purchasing some paint.
The group of workers cannot be painting if they are still purchasing the paint.
exists e1 s1 x1 x2 x3 x4 x5 x6 x7 x8.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x3) & v_wear(e1) & in(x4,x7) & n_station(x7) & of(x7,x8) & n_rail(x8) & a_british(s1) & Theme(s1,x7) & n_painting(x4) & of(x4,x6) & n_vest(x6) & of(x4,x5) & n_orange(x5) & (x1 = x3) & of(x1,x2) & n_worker(x2) & n_group(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_purchase(e1) & n_paint(x2) & n_guy(x1))