A man in plaid with black sunglasses plays on an acoustic guitar.
A man plays his guitar at a country concert on stage.
Plays on an acoustic guitar does not necessarily mean at a country concert.
exists e1 s1 s2 x1 x2 x3 x4.(on(e1,x4) & n_guitar(x4) & a_acoustic(s2) & Theme(s2,x4) & Actor(e1,x1) & v_play(e1) & in(x1,x2) & with(x2,x3) & n_sunglass(x3) & a_black(s1) & Theme(s1,x3) & n_plaid(x2) & n_man(x1))
exists e1 x1 x2 x3 x4 x5.(on(e1,x5) & n_stage(x5) & at(e1,x3) & n_concert(x3) & of(x3,x4) & n_country(x4) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_guitar(x2) & of(x2,x1) & n_male(x1) & n_man(x1))