A man wearing sunglasses and a plaid shirt playing a guitar.
A man playing a saxophone.
You cannot be playing a guitar and saxophone at the same time.
exists e1 e2 s1 x1 x2 x3 x4.(Theme(e2,x4) & Actor(e2,x3) & v_play(e2) & n_guitar(x4) & n_shirt(x3) & a_plaid(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_sunglass(x2) & n_man(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_saxophone(x3) & (x1 = x2) & n_man(x1))