A man skateboarding in front of graffiti.
There is a guy doing tricks on his skateboard.
We can't infer the man is doing tricks,
exists e1 x1 x2 x3 x4.(a_topic(x1) & in(e1,x3) & of(x3,x4) & n_graffitus(x4) & n_front(x3) & Actor(e1,x2) & v_skateboard(e1) & (x1 = x2) & n_man(x1))
exists p1 x1 e1 x2 x3 x4 x5.((x1 = x2) & on(e1,x5) & n_skateboard(x5) & of(x5,x2) & n_male(x2) & Theme(e1,x4) & Actor(e1,x3) & v_do(e1) & n_trick(x4) & (x2 = x3) & n_guy(x2))