A man walks past some graffiti of a group of guys in leather jackets and blue jeans on a tan wall.
A man buys a prominent piece of local art.
Local art is usually not referred to as graffiti. one who walks past a display does not buy the display.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6 x7 x8 x9.(on(e1,x9) & n_wall(x9) & a_tan(s2) & Theme(s2,x9) & past(e1,x2) & of(x2,x3) & of(x3,x4) & subset_of(x8,x4) & n_jeans(x8) & a_blue(s1) & Theme(s1,x8) & subset_of(x5,x4) & in(x5,x6) & n_jacket(x6) & of(x6,x7) & n_leather(x7) & n_guy(x5) & n_group(x3) & n_graffitus(x2) & Actor(e1,x1) & v_walk(e1) & n_man(x1))
exists e1 s1 s2 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_buy(e1) & of(x2,x3) & n_art(x3) & a_local(s2) & Theme(s2,x3) & n_piece(x2) & a_prominent(s1) & Theme(s1,x2) & n_man(x1))