A man wearing a black baseball cap and headphones reaches into his shirt pocket.
A man reaches to change the music on his iPod
We can not infer from the first sentence why the man is reaching into his pocket, whether or not he is listening to music, or if he has an iPod.
exists e2 e1 s1 x1 x2 x3 x4 x5 x6 x7 x8.(into(e2,x7) & n_pocket(x7) & of(x7,x8) & n_shirt(x8) & of(x7,x1) & n_male(x1) & Actor(e2,x1) & v_reach(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & subset_of(x6,x3) & n_headphone(x6) & subset_of(x4,x3) & n_cap(x4) & of(x4,x5) & n_baseball(x5) & a_black(s1) & Theme(s1,x4) & (x1 = x2) & n_man(x1))
exists e1 p1 x1 x2 x3.(n_ipod(x3) & of(x3,x2) & n_male(x2) & n_music(x2) & Topic(e1,p1) & Actor(e1,x1) & v_reach(e1) & exists e2.(Theme(e2,x2) & Actor(e2,x1) & v_change(e2) & on(x2,x3)) & n_man(x1))