With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Elementary has the character Sherlock Holmes and Dr. Joan Watson.
text_B: Elementary is an American procedural drama series that presents a contemporary update of Sir Arthur Conan Doyle 's character Sherlock Holmes .. drama. drama. Sir Arthur Conan Doyle. Sir Arthur Conan Doyle. procedural drama. procedural drama. Sherlock Holmes. Sherlock Holmes. Sherlock. Sherlock ( TV series ). The series was created by Robert Doherty and stars Jonny Lee Miller as Sherlock Holmes and Lucy Liu as Dr. Joan Watson .. Robert Doherty. Robert Doherty ( writer ). Jonny Lee Miller. Jonny Lee Miller. Lucy Liu. Lucy Liu. Sherlock Holmes. Sherlock Holmes. Dr. Joan Watson. Dr. Watson. Sherlock. Sherlock ( TV series ). The series premiered on CBS on September 27 , 2012 .. CBS. CBS. The series is set and filmed primarily in New York City .. New York City. New York City. The show follows Holmes , a recovering drug addict and former consultant to Scotland Yard , as he assists the New York City Police Department in solving crimes .. New York City. New York City. consultant. consultant. Scotland Yard. Scotland Yard. New York City Police Department. New York City Police Department. His indifference to police procedure often leads to conflict with Captain Thomas Gregson -LRB- Aidan Quinn -RRB- , although the two still remain mutually respectful of one another .. Aidan Quinn. Aidan Quinn. Captain Thomas Gregson. Minor Sherlock Holmes characters#Inspector Gregson. He is accompanied by Dr. Joan Watson -LRB- Lucy Liu -RRB- , who initially acts as his sober companion .. Lucy Liu. Lucy Liu. Dr. Joan Watson. Dr. Watson. sober companion. sober companion. She is a former surgeon and was hired by Sherlock 's father to help him in his rehabilitation .. rehabilitation. Drug rehabilitation. Sherlock. Sherlock ( TV series ). They eventually begin to work together on his cases , and she becomes Holmes ' apprentice .. apprentice. apprentice. The series also features Holmes ' ongoing conflict with his nemesis Jamie Moriarty -LRB- Natalie Dormer -RRB- .. nemesis. Archenemy. Jamie Moriarty. Professor Moriarty. Natalie Dormer. Natalie Dormer. Other supporting roles include Jon Michael Hill as Detective Marcus Bell , Rhys Ifans as Sherlock 's brother , Mycroft Holmes , and John Noble as Sherlock 's father , Morland Holmes .. Jon Michael Hill. Jon Michael Hill. John Noble. John Noble. Rhys Ifans. Rhys Ifans. Mycroft Holmes. Mycroft Holmes. Sherlock. Sherlock ( TV series ). Before the series premiered , it was met with some criticism given it followed closely on the heels of the BBC 's modern adaptation Sherlock .. BBC. BBC. Sherlock. Sherlock ( TV series ). After the premiere , it was picked up for a full season and later an extra two episodes .. The season two premiere was partly filmed on location in London .. London. London. The series has since been well received by critics , who have praised the performances , writing , and novel approach to the source material .. On March 25 , 2016 , CBS renewed the series for a fifth season , which premiered on October 2 , 2016 .. CBS. CBS. On May 13 , 2017 , CBS renewed the series for a sixth season .. CBS. CBS
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