A man in a black shirt is holding a guitar.
A man in a black shirt is holding a guitar, and a pick.
Just because man is holding a guitar doesn't mean he holding a pick.
exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_hold(e1) & n_guitar(x3) & in(x1,x2) & n_shirt(x2) & a_black(s1) & Theme(s1,x2) & n_man(x1))
exists e1 s1 x1 x2 x3 x4 x5.(Theme(e1,x3) & Actor(e1,x1) & v_hold(e1) & subset_of(x5,x3) & n_pick(x5) & subset_of(x4,x3) & n_guitar(x4) & in(x1,x2) & n_shirt(x2) & a_black(s1) & Theme(s1,x2) & n_man(x1))