A country band is playing.
A group is playing music on an outside stage.
The band is not playing on an outside stage, it could be an inside stage, or they could not be on a stage at all.
exists e1 x1 x2.(Actor(e1,x1) & v_play(e1) & n_band(x1) & of(x1,x2) & n_country(x2))
exists e1 s1 x1 x2 x3.(on(e1,x3) & n_stage(x3) & a_outside(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_music(x2) & n_group(x1))