With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Black Sails is a sequel to a Robert Louis Stevenson novel.
text_B: Black Sails is an American historical adventure television series set on New Providence Island and a prequel to Robert Louis Stevenson 's novel Treasure Island .. historical. Historical period drama. adventure. Adventure fiction. television series. television series. New Providence. New Providence. Robert Louis Stevenson. Robert Louis Stevenson. Treasure Island. Treasure Island. The series was created by Jonathan E. Steinberg and Robert Levine for Starz .. Jonathan E. Steinberg. Jonathan E. Steinberg. Starz. Starz ( TV channel ). It debuted online for free on YouTube and other various streaming platform and video on demand services on January 18 , 2014 .. YouTube. YouTube. The debut on cable television followed a week later on January 25 , 2014 .. Steinberg is executive producer , alongside Michael Bay , Brad Fuller and Andrew Form , while Michael Angeli , Doris Egan , and Levine are co-executive producers .. Michael Bay. Michael Bay. Brad Fuller. Bradley Fuller. Andrew Form. Andrew Form. Michael Angeli. Michael Angeli. Doris Egan. Doris Egan. On July 26 , 2013 , Starz renewed the show for a ten-episode second season , which premiered on January 24 , 2015 .. Starz. Starz ( TV channel ). The early renewal , six months before the first season premiered , was based on the positive fan reaction to the show at the San Diego Comic-Con .. San Diego Comic-Con. San Diego Comic-Con International. The series was renewed for a third season on October 12 , 2014 , and a fourth season on July 31 , 2015 , both before the respective previous seasons had premiered .. On July 20 , 2016 , Starz announced that the series ' fourth season would be its last ; the season premiered on January 29 , 2017 , and the series concluded on April 2 , 2017 .. Starz. Starz ( TV channel )
related.