Two women are singing on a stage while a man in red plays the guitar.
A trio puts on a musical performance.
Two women and a man are a trio and singing and guitar is a musical performance.
exists e1 s1 x1 x2 x3 x4 x5.(while(e1,x3) & n_guitar(x5) & (x3 = x5) & in(x3,x4) & n_play(x4) & a_red(s1) & Theme(s1,x4) & n_man(x3) & on(e1,x2) & n_stage(x2) & Actor(e1,x1) & v_sing(e1) & n_woman(x1) & card_eq_2(x1))
exists s1 x1 x2 x3.(a_topic(x1) & on(x1,x3) & n_performance(x3) & a_musical(s1) & Theme(s1,x3) & n_put(x1) & of(x1,x2) & n_trio(x2))