With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Agatha Christie was a writer.
text_B: Dame Agatha Mary Clarissa Christie , Lady Mallowan , DBE -LRB- nee Miller ; 15 September 1890 -- 12 January 1976 -RRB- was an English crime novelist , short story writer and playwright .. DBE. Dame Commander of the Order of the British Empire. crime. Crime fiction. novelist. novelist. short story writer. short story writer. playwright. playwright. Dame. Dame Commander of the Order of the British Empire. She is best known for her 66 detective novels and 14 short story collections , particularly those revolving around her fictional detectives Hercule Poirot and Miss Marple .. detective. Detective fiction. Hercule Poirot. Hercule Poirot. Miss Marple. Miss Marple. She also wrote the world 's longest-running play , a murder mystery , The Mousetrap , and six romances under the name Mary Westmacott .. The Mousetrap. The Mousetrap. romances. romance novel. In 1971 she was made a Dame for her contribution to literature .. Dame. Dame Commander of the Order of the British Empire. Christie was born into a wealthy upper-middle-class family in Torquay , Devon .. Torquay. Torquay. Devon. Devon. She served in a Devon hospital during the First World War , tending to troops coming back from the trenches , before marrying and starting a family in London .. Devon. Devon. First World War. First World War. She was initially an unsuccessful writer , but this all changed for the better when The Mysterious Affair at Styles was published in 1920 featuring Hercule Poirot .. Hercule Poirot. Hercule Poirot. The Mysterious Affair at Styles. The Mysterious Affair at Styles. During the Second World War she worked as a pharmacy assistant at University College Hospital , London during the Blitz and acquired a good knowledge of poisons which featured in many of her novels .. Second World War. Second World War. the Blitz. the Blitz. Guinness World Records lists Christie as the best-selling novelist of all time .. novelist. novelist. Guinness World Records. Guinness World Records. Her novels have sold roughly 2 billion copies , and her estate claims that her works come third in the rankings of the world 's most-widely published books , behind only Shakespeare 's works and the Bible .. estate. Estate ( law ). Bible. Bible. According to Index Translationum , she remains the most-translated individual author -- having been translated into at least 103 languages .. Index Translationum. Index Translationum. And Then There Were None is Christie 's best-selling novel , with 100 million sales to date , making it the world 's best-selling mystery ever , and one of the best-selling books of all time .. And Then There Were None. And Then There Were None. best-selling books. List of best-selling books. Christie 's stage play The Mousetrap holds the world record for longest initial run .. The Mousetrap. The Mousetrap. It opened at the Ambassadors Theatre in the West End on 25 November 1952 and is still running after more than 25,000 performances .. Ambassadors Theatre. Ambassadors Theatre ( London ). West End. West End theatre. In 1955 , Christie was the first recipient of the Mystery Writers of America 's highest honour , the Grand Master Award .. Mystery Writers of America. Mystery Writers of America. Grand Master Award. MWA Grand Master Award. Later the same year , Witness for the Prosecution received an Edgar Award by the MWA for Best Play .. Witness for the Prosecution. Witness for the Prosecution ( play ). Edgar Award. Edgar Award. In 2013 , The Murder of Roger Ackroyd was voted the best crime novel ever by 600 fellow writers of the Crime Writers ' Association .. The Murder of Roger Ackroyd. The Murder of Roger Ackroyd. crime. Crime fiction. On 15 September 2015 , coinciding with her 125th birthday , And Then There Were None was named the `` World 's Favourite Christie '' in a vote sponsored by the author 's estate .. And Then There Were None. And Then There Were None. estate. Estate ( law ). Most of her books and short stories have been adapted for television , radio , video games and comics , and more than thirty feature films have been based on her work .. short stories. short story
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