With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: One Direction is a group.
text_B: `` The Lich '' is the twenty-sixth episode and season finale of the fourth season of the American animated television series Adventure Time .. fourth season. Adventure Time ( season 4 ). animated television series. animated television series. Adventure Time. Adventure Time. The episode was written and storyboarded by Tom Herpich and Skyler Page , from a story by Patrick McHale , Kent Osborne , Pendleton Ward .. Patrick McHale. Patrick McHale ( artist ). Kent Osborne. Kent Osborne. Pendleton Ward. Pendleton Ward. Tom Herpich. Tom Herpich. Skyler Page. Skyler Page. It originally aired on Cartoon Network on October 22 , 2012 .. Cartoon Network. Cartoon Network. The episode guest stars Lou Ferrigno as Billy , and Ron Perlman as the Lich .. Lou Ferrigno. Lou Ferrigno. Ron Perlman. Ron Perlman. The series follows the adventures of Finn -LRB- voiced by Jeremy Shada -RRB- , a human boy , and his best friend and adoptive brother Jake -LRB- voiced by John DiMaggio -RRB- , a dog with magical powers to change shape and grow and shrink at will .. Finn. Finn the Human. Jake. Jake the Dog. Jeremy Shada. Jeremy Shada. John DiMaggio. John DiMaggio. In this episode , Finn has an ominous dream about the Lich , and sets off with Jake to warn Billy .. Finn. Finn the Human. Jake. Jake the Dog. Billy reveals that they must unite the gems of all the crowns of power , place them in the Enchiridion , and open a portal to the multiverse .. multiverse. multiverse. However , it is revealed that the Lich is actually disguised as Billy .. Finn and Jake then follow him through the multiverse .. Finn. Finn the Human. Jake. Jake the Dog. multiverse. multiverse. `` The Lich '' would be the inception of a three-episode arc that would not be concluded until the second episode the fifth season .. fifth season. Adventure Time ( season 5 ). In the opening scene , Herpich used unicorn symbolism , most notable the tapestry The Unicorn is in Captivity and No Longer Dead , a piece of the seven-part tapestry The Hunt of the Unicorn , to illustrate the themes of the episode .. The Hunt of the Unicorn. The Hunt of the Unicorn. `` The Lich '' was watched by 2.589 million people and received largely positive critical attention , with many commenting on the episode 's cliffhanger .. cliffhanger. cliffhanger
not_related.