instruction:
In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.
question:
Question: How old was Griff Rhys Jones when the BBC docudrama Charles Dickens & the Invention of Christmas was released? Passage:In December 2007 she appeared as herself in the BBC docudrama Charles Dickens & the Invention of Christmas, written and presented by Griff Rhys Jones. She also appeared in Channel 4's 2008 documentary Dickens's Secret Lover, which was concerned with Dickens's relationship with the actress Ellen Ternan. In December 2011 she appeared on BBC One's Songs of Praise and for BBC Two in Mrs Dickens' Family Christmas, during which she was interviewed by Sue Perkins. In January 2013 she appeared in all three episodes of BBC Two's Queen Victoria's Children and in an episode of Find My Past which was concerned with the affair between Charles Dickens and Ellen Ternan. She has appeared twice on BBC One's The One Show, interviewed about Lizzie Siddal and about Charles Dickens's will. She was the presenter for BBC One's Inside Out London: Dickens and Health Her radio appearances include The Today Programme (BBC Radio 4); Woman's Hour (BBC Radio 4); The Aled Jones Show (BBC Radio 2); The Robert Elms Show (BBC London); The Lynn Parsons Show (Smooth Radio and BBC Berkshire); Glad To Be Grey with Mary Beard (BBC Radio 4) and Behind the Looking Glass with Lauren Laverne (BBC Radio 4). In 2013, Hawksley unveiled a new blue plaque to her great great great grandfather, at 22 Cleveland Street, London.

answer:
b


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Question: What is the maximum length of the species that is known to prey on the crossback stingaree? Passage:The broadnose sevengill shark (Notorynchus cepedianus) is known to prey on the crossback stingaree. When threatened, this ray raises its tail warningly above its body in a scorpion-like fashion. Parasites documented from this species include a tapeworm in the genus Acanthobothrium, and the monogenean Calicotyle urolophi. Like other stingrays, the crossback stingaree is aplacental viviparous: when the developing embryos exhaust their supply of yolk, their mother provisions them with nutrient-rich histotroph ("uterine milk") through specialized extensions of the uterine epithelium called "trophonemata". Females produce litters of 1–4 pups every other year. Embryonic development proceeds rapidly over a six-month period, though the total gestation period may be much longer if there is a period of dormancy for the eggs after fertilization, as has been reported in other stingarees. Off Tasmania, large estuaries such as at the mouth of the River Derwent serve as nursery areas.

answer:
b


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Question: What is Prez's full name? Passage:Sydnor and Herc watch as Marlo meets with his lieutenants. Marlo makes a phone call about picking up a "skinny girl from New York," which Herc interprets as an arrangement to pick up a supply of cocaine. Herc follows Marlo to Penn Station and has him arrested when he meets a woman who turns out to not be carrying drugs. Marlo has engineered the incident to draw out the police. Meanwhile, Greggs learns that a prisoner has offered information on the dead state's witness. However, Rawls tells Landsman to detail Greggs and Norris to uniformed duty at the polls, stalling the witness case until after the election. At school, Prez offers to help Dukie get clean clothes. Donnelly and Grace remove Namond from regular class and put him in Colvin and Parenti's study program along with nine other students. When Randy is brought to Donnelly concerning a potential sexual assault case with a female student, he reveals that he knows about a murder. Later, Prez appeals to Donnelly to let him hand Randy's confession on to someone that he trusts in the police.

answer:

a