With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The 6th expansion set of World of Warcraft was released on the 30th.
text_B: World of Warcraft -LRB- WoW -RRB- is a massively multiplayer online role-playing game -LRB- MMORPG -RRB- released in 2004 by Blizzard Entertainment .. Blizzard Entertainment. Blizzard Entertainment. Warcraft. Warcraft. massively multiplayer online role-playing game. massively multiplayer online role-playing game. MMORPG. Massively multiplayer online role-playing game. It is the fourth released game set in the fantasy Warcraft universe , which was first introduced by Warcraft  : Orcs & Humans in 1994 .. Warcraft. Warcraft. World of Warcraft takes place within the Warcraft world of Azeroth , approximately four years after the events at the conclusion of Blizzard 's previous Warcraft release , Warcraft III  : The Frozen Throne .. Warcraft. Warcraft. Azeroth. Azeroth ( world ). Blizzard Entertainment announced World of Warcraft on September 2 , 2001 .. Blizzard Entertainment. Blizzard Entertainment. Warcraft. Warcraft. The game was released on November 23 , 2004 , on the 10th anniversary of the Warcraft franchise .. Warcraft. Warcraft. franchise. media franchise. The first expansion set of the game , The Burning Crusade , was released on January 16 , 2007 .. The second expansion set , Wrath of the Lich King , was released on November 13 , 2008 .. The third expansion set , Cataclysm , was released on December 7 , 2010 .. Cataclysm. World of Warcraft : Cataclysm. The fourth expansion set , Mists of Pandaria , was released on September 25 , 2012 .. The fifth expansion set , Warlords of Draenor , was released on November 13 , 2014 .. The sixth expansion set , Legion , was released on August 30 , 2016 .. Legion. World of Warcraft : Legion. With a peak of 12 million subscriptions in October 2010 and Blizzard 's final report of 5.5 million subscriptions in October 2015 , World of Warcraft remains the world 's most-subscribed MMORPG , and holds the Guinness World Record for the most popular MMORPG by subscribers .. Warcraft. Warcraft. MMORPG. Massively multiplayer online role-playing game. Guinness World Record. Guinness World Records. In January 2014 , Blizzard announced that more than 100 million accounts had been created over the game 's lifetime .
related.