A man painting murals on the sidewalk.
A man is  using a brush
The man could be using spray paint instead of a brush to paint.
exists x1 x2 x3 x4.(n_sidewalk(x4) & a_topic(x1) & on(x1,x4) & Time(x1,x3) & n_mural(x3) & n_painting(x1) & of(x1,x2) & n_man(x2))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_use(e1) & n_brush(x2) & n_man(x1))