A man in a baseball cap is creating a sculpture of a man.
Someone with a hat on is doing art.
Someone with a hat on is doing art refers a man in a baseball cap
exists e1 x1 x2 x3 x4 x5.(Theme(e1,x4) & Actor(e1,x1) & v_create(e1) & of(x4,x5) & n_man(x5) & n_sculpture(x4) & in(x1,x2) & n_cap(x2) & of(x2,x3) & n_baseball(x3) & n_man(x1))
exists e1 s1 x1 x2 x3 x4.(Theme(e1,x4) & Actor(e1,x1) & v_do(e1) & n_art(x4) & with(x1,x2) & Theme(s1,x3) & a_on(s1) & (x2 = x3) & n_hat(x2) & n_person(x1))