A group of musicians are playing together.
The musicians are playing in a concert hall for an audience.
When musicians play together it is not always in a concert hall or for an audience.
exists e1 s1 x1 x2.(a_together(s1) & Manner(e1,s1) & Actor(e1,x1) & v_play(e1) & of(x1,x2) & n_musician(x2) & n_group(x1))
exists e1 x1 x2 x3 x4.(n_musician(x1) & in(e1,x2) & for(x2,x4) & n_audience(x4) & n_hall(x2) & of(x2,x3) & n_concert(x3) & Actor(e1,x1) & v_play(e1))