With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Fifty Shades of Grey sold over 125 million copies by marketing directly at middle-aged housewives.
text_B: Fifty Shades of Grey is a 2011 erotic romance novel by British author E. L. James .. E. L. James. E. L. James. erotic romance novel. Erotic romance novels. It is the first instalment in the Fifty Shades trilogy that traces the deepening relationship between a college graduate , Anastasia Steele , and a young business magnate , Christian Grey .. It is notable for its explicitly erotic scenes featuring elements of sexual practices involving bondage / discipline , dominance / submission , and sadism / masochism -LRB- BDSM -RRB- .. bondage. Bondage ( sexual ). dominance / submission. Dominance and submission. sadism / masochism. Sadomasochism. BDSM. BDSM. Originally self-published as an ebook and a print-on-demand , publishing rights were acquired by Vintage Books in March 2012 .. Vintage Books. Vintage Books. self-published. Self-publishing. ebook. ebook. print-on-demand. print-on-demand. Fifty Shades of Grey has topped best-seller lists around the world , selling over 125 million copies worldwide by June 2015 .. It has been translated into 52 languages , and set a record in the United Kingdom as the fastest-selling paperback of all time .. paperback. paperback. Critical reception of the book , however , has tended towards the negative , with the quality of its prose generally seen as poor .. Universal Pictures and Focus Features produced a film adaptation , which was released on 13 February 2015 and also received generally unfavourable reviews .. Universal Pictures. Universal Pictures. Focus Features. Focus Features. film adaptation. Fifty Shades of Grey ( film ). The second and third volumes of the trilogy , Fifty Shades Darker and Fifty Shades Freed , were published in 2012 .. Fifty Shades Darker. Fifty Shades Darker. Fifty Shades Freed. Fifty Shades Freed. Grey  : Fifty Shades of Grey as Told by Christian , a version of Fifty Shades of Grey being told from Christian 's point of view , was published in June 2015 .
related.