With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Battle Studies World Tour was a tour by an American juggler.
text_B: The Kinder Foundation is a Houston-based 501c3 nonprofit organization .. It was established in 1997 by Rich and Nancy Kinder .. Nancy Kinder. Nancy Kinder. Since its establishment , the Kinder Foundation has committed more than $ 200 million in grants and transformation gifts to Houston projects and distributed more than $ 90 million since 2007 .
not_related.