With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Jenna Dewan is a person who dances.
text_B: Vertical Blue is a free-diving school that operates at Dean 's Blue Hole , in The Bahamas , and is presided over by freediving world record holder William Trubridge .. free-diving. free-diving. The Bahamas. The Bahamas. freediving. freediving. William Trubridge. William Trubridge. It is also the name of the annual AIDA International judged freediving competition run at the same location , which since April 2008 has presided over multiple world and national records for athletes coming from countries all over the world .. freediving. freediving. AIDA International. AIDA International. On November 17 , 2013 , American free-diver Nicholas Mevoli died after attempting to set an American record during a Vertical Blue competition at Dean 's Blue Hole .. Nicholas Mevoli. Nicholas Mevoli
not_related.