With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Playboy Club's cast excludes Jenna Dewan Tatum.
text_B: Cara Black and Elena Likhovtseva were the defending champions , but lost in semifinals to tournament winners Elena Dementieva and Janette Husarova. Elena Dementieva. Elena Dementieva. Janette Husarova. Janette Husarova. Cara Black. Cara Black. Elena Likhovtseva. Elena Likhovtseva. Dementieva and Husarova defeated Daniela Hantuchova and Ai Sugiyama 6 -- 2 , 6 -- 4 in the final .. Daniela Hantuchova. Daniela Hantuchova. Ai Sugiyama. Ai Sugiyama
not_related.