A man in a black shirt is playing the guitar.
He is wearing a tshirt.
when he is wearing tshirt he don't need to play guitar
exists e1 s1 x1 x2 x3.(n_guitar(x3) & Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & in(x1,x2) & n_shirt(x2) & a_black(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2.(n_male(x1) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_tshirt(x2))