A pair of men in shorts lay on the concrete in a drainage culvert, surrounded by graffiti.
The men are spray painting graffiti.
Not all graffiti is done by spray painting.
exists e1 e2 x1 x2 x3 x4 x5 x6 x7 x8.(n_concrete(x4) & on(e1,x4) & in(x4,x5) & Actor(e2,x8) & n_graffitus(x8) & Theme(e2,x7) & v_surround(e2) & (x5 = x7) & n_culvert(x5) & of(x5,x6) & n_drainage(x6) & Actor(e1,x1) & v_lay(e1) & of(x1,x2) & in(x2,x3) & n_shorts(x3) & n_man(x2) & n_pair(x1))
exists p1 x1.(n_man(x1) & exists s1 x2 x3.((x1 = x2) & Time(x2,x3) & n_graffitus(x3) & n_painting(x2) & a_spray(s1) & Theme(s1,x2)))