A man playing a synthesizer wearing a green sweater and hat.
The man was playing jingle bells on the synthesizer.
You can play any song on a synthesizer not just jingle bells.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & Theme(e2,x3) & Actor(e2,x2) & v_play(e2) & Theme(e1,x5) & Actor(e1,x4) & v_wear(e1) & n_hat(x7) & n_sweater(x6) & a_green(s1) & Theme(s1,x6) & subset_of(x7,x5) & subset_of(x6,x5) & (x3 = x4) & n_synthesizer(x3) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3 x4.(n_synthesizer(x4) & n_man(x1) & on(e1,x4) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_bell(x2) & of(x2,x3) & n_jingle(x3))