A man with long hair and sunglasses is wearing blue clothing and paint while holding a blue guitar on a sidewalk.
The man is holding a musical instrument.
In a both sentences, A man holding a guitar.and musical instrument refers to guitar.
exists e1 e2 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7 x8 x9.(while(e1,e2) & Theme(e2,x8) & Actor(e2,x1) & v_hold(e2) & on(x8,x9) & n_sidewalk(x9) & n_guitar(x8) & a_blue(s3) & Theme(s3,x8) & Theme(e1,x5) & Actor(e1,x1) & v_wear(e1) & n_paint(x7) & n_clothing(x6) & subset_of(x7,x5) & subset_of(x6,x5) & a_blue(s2) & Theme(s2,x5) & with(x1,x2) & n_sunglass(x4) & n_hair(x3) & subset_of(x4,x2) & subset_of(x3,x2) & a_long(s1) & Theme(s1,x2) & n_man(x1))
exists e1 s1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_hold(e1) & n_instrument(x2) & a_musical(s1) & Theme(s1,x2))