A woman in pink is singing on stage next to three guitar players.
The woman is not a good singer.
One is either pink or they are not.  I am trying to contradict...
exists e1 x1 x2 x3 x4 x5.(to(e1,x4) & n_player(x4) & of(x4,x5) & n_guitar(x5) & card_eq_3(x4) & r_next(e1) & on(e1,x3) & n_stage(x3) & Actor(e1,x1) & v_sing(e1) & in(x1,x2) & n_pink(x2) & n_woman(x1))
exists x1.(n_woman(x1) & -exists p1 s1 x2.((x1 = x2) & n_singer(x2) & a_good(s1) & Theme(s1,x2)))