With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The 2014 WTA Finals was in Mainland Singapore.
text_B: The 2014 WTA Finals was a women 's tennis tournament in Singapore from October 17 to October 26 , 2014 , and was the 44th edition of the singles event and the 39th edition of the doubles competition .. tennis. tennis. Singapore. Singapore. The tournament was held at the Singapore Indoor Stadium , and contested by eight singles players and eight doubles teams .. Singapore Indoor Stadium. Singapore Indoor Stadium. Singapore. Singapore. It was the Championships of 2014 WTA Tour .. 2014 WTA Tour. 2014 WTA Tour
related.