guy playing two instruments at one time.
The man is holding two instruments.
If you are playing two instruments then you are holding two instruments
exists e1 x1 x2 x3 x4.(a_topic(x1) & at(e1,x4) & n_time(x4) & card_eq_1(x4) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_instrument(x3) & card_eq_2(x3) & (x1 = x2) & n_guy(x1))
exists e1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_hold(e1) & n_instrument(x2) & card_eq_2(x2))