A man concentrates on his music, holding his violin.
The man is listening to the music.
Concentrating on music involves listening to it.
exists e2 e1 x1 x2 x3.(for(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_hold(e2) & n_violin(x3) & of(x3,x1) & n_male(x1) & n_male(x1) & on(e1,x2) & n_music(x2) & of(x2,x1) & Actor(e1,x1) & v_concentrate(e1) & n_man(x1))
exists e1 x1 x2.(n_music(x2) & n_man(x1) & to(e1,x2) & Actor(e1,x1) & v_listen(e1))