A bass player girl, who is performing at a concert one of the bands songs.
There is a bass player at the concert.
The bass player is at the concern because she is performing at a concert.
exists e1 x1 x2 x3 x4 x5 x6 x7.(n_song(x6) & of(x6,x7) & n_band(x7) & a_topic(x1) & at(e1,x5) & of(x5,x6) & n_concert(x5) & card_eq_1(x5) & Actor(e1,x4) & v_perform(e1) & (x1 = x4) & n_girl(x1) & of(x1,x3) & n_player(x3) & of(x1,x2) & n_bass(x2))
exists p1 x1 x4.(n_concert(x4) & exists x2 x3.((x1 = x2) & at(x2,x4) & n_player(x2) & of(x2,x3) & n_bass(x3)))