A shirtless skateboarder.
A man is skateboarding without a shirt.
just because there is a shirtless skateboarder doesn't mean the skateboarder is a man
exists s1 x1.(a_topic(x1) & n_skateboarder(x1) & a_shirtless(s1) & Theme(s1,x1))
exists e1 x1 x2.(without(e1,x2) & n_shirt(x2) & Actor(e1,x1) & v_skateboard(e1) & n_man(x1))