A man in shorts on an elliptical.
A man is wearing shorts.
man in shorts means he is wearing shorts
exists x1 x2 x3.(a_topic(x1) & in(x1,x2) & on(x2,x3) & n_elliptical(x3) & n_shorts(x2) & n_man(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_shorts(x2) & n_man(x1))