A woman with blue hair is playing the guitar leaning against a blue wall.
The women performed a concert on a blue backdrop.
Just because a woman is playing the guitar, does not mean she is performing in a concert.
exists e2 e1 s1 s2 x1 x2 x3 x4 x5.(n_guitar(x3) & Theme(e2,x3) & Actor(e2,x1) & v_play(e2) & against(e1,x5) & n_wall(x5) & a_blue(s2) & Theme(s2,x5) & Actor(e1,x4) & v_lean(e1) & (x3 = x4) & with(x1,x2) & n_hair(x2) & a_blue(s1) & Theme(s1,x2) & n_woman(x1))
exists e1 s1 x1 x2 x3.(n_woman(x1) & on(e1,x3) & n_backdrop(x3) & a_blue(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_concert(x2))