With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tori Kelly is a producer.
text_B: The Defamation of Strickland Banks Tour was a concert tour by British musician Plan B in support of his second studio album The Defamation of Strickland Banks .. Plan B. Plan B ( musician ). The Defamation of Strickland Banks. The Defamation of Strickland Banks. Lasting from January 2010 -- September 2011 , the tour visited the United Kingdom , Europe , the United States and Oceania .
not_related.