A group of people holding music instruments.
The people are a music group.
The group of people holding musical instruments are in a music group.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & of(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_hold(e1) & n_instrument(x4) & of(x4,x5) & n_music(x5) & (x2 = x3) & n_people(x2) & n_group(x1))
exists p1 x1.(n_people(x1) & exists x2 x3.((x1 = x2) & n_group(x2) & of(x2,x3) & n_music(x3)))