A man with a brimmed hat is skateboarding near some graffiti
A man is rollerblading.
A man cannot be skateboarding and rollerblading at the same time.
exists e1 e2 x1 x2 x3.(near(e2,x3) & n_graffitus(x3) & Actor(e2,x1) & v_skateboard(e2) & with(x1,x2) & n_hat(x2) & Theme(e1,x2) & v_brim(e1) & n_man(x1))
exists e1 x1.(Actor(e1,x1) & v_rollerblade(e1) & n_man(x1))