A shadowy figure watches a shirtless man ride past on a chopper.
A man is shirtless
A shadowy figure does not necessarily have to be a man.
exists e1 s1 s2 x1 x2 x3 x4 x5.(on(e1,x5) & n_chopper(x5) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_past(x2) & of(x2,x4) & n_ride(x4) & of(x2,x3) & n_man(x3) & a_shirtless(s2) & Theme(s2,x2) & n_figure(x1) & a_shadowy(s1) & Theme(s1,x1))
exists s1 x1.(Theme(s1,x1) & a_shirtless(s1) & n_man(x1))