A man with shaggy blond-hair singing and playing a guitar.
There is a person making music.
The man is singing and playing guitar, and a man is a person. Therefore a person is making music.
exists e1 s1 s2 x1 x2 x3 x4 x5.(a_topic(x1) & with(x1,x2) & subset_of(e1,x2) & Theme(e1,x5) & Actor(e1,x4) & v_play(e1) & n_guitar(x5) & n_thing(x4) & subset_of(x3,x2) & n_singing(x3) & a_blond-hair(s2) & Theme(s2,x3) & a_shaggy(s1) & Theme(s1,x3) & n_man(x1))
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & Theme(e1,x4) & Actor(e1,x3) & v_make(e1) & n_music(x4) & (x2 = x3) & n_person(x2))