Two ladies play the violin and the guitar on the street to entertain the passer byes.
The women are attending an opera.
The people wouldn't be playing the violin or guitar in an opera.
exists e1 p1 x1 x2 x3 x4 x5 x6 x7 x8.(n_bye(x7) & of(x7,x8) & n_passer(x8) & n_street(x6) & n_guitar(x5) & n_violin(x4) & Topic(e1,p1) & exists e2.(Theme(e2,x7) & Actor(e2,x1) & v_entertain(e2)) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & subset_of(x5,x3) & on(x5,x6) & subset_of(x4,x3) & n_lady(x2) & card_eq_2(x2) & n_lady(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_woman(x1) & Theme(e1,x2) & Actor(e1,x1) & v_attend(e1) & n_opera(x2))