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.

Q: Question: How long did it take to construct the Ekaterinburg (K-84)? Passage:Construction of the nuclear submarine Ekaterinburg (K-84) began at the Northern Machinebuilding Enterprise (Sevmash) in Severodvinsk on 17 February 1982, before being commissioned into the Soviet Navy on 30 December 1985. She was the second of the seven-boat Project 667BDRM Delfin class, which was developed at the Rubin Design Bureau in September 1975. A ballistic missile submarine, she was designed primarily to carry up to 16 R-29RM Shtil (NATO designation: SS-N-23 Skiff) SLBM for use against military and industrial facilities in the case of a nuclear war. Each Shtil missile carries ten 100 kt multiple independently targeted reentry vehicles, and has a circular error probable of . She is also equipped with RPK-7 Veter (NATO designation: SS-N-16 Stallion) anti-ship missiles for use against large surface vessels, and self-defense torpedoes.


A: b
****
Q: Question: What state did Sayre attend college? Passage:Anne Sayre was "born on a train passing through Milwaukee". She spent her childhood in Woodmere, New York, and was educated at Radcliffe College. But the Second World War prevented her to pursue law, her main ambition. To render her service in the war, she worked in the Radiation Laboratory at Massachusetts Institute of Technology. Her job there was managing the supply of special-design transformers. She never really knew what transformers were. She took the job for only a few months, but she met her future husband, David Sayre. (David Sayre was a physics student who also volunteered for war service during his academic break.) They got married in 1947. Married to a scientist, she described herself as "a camp-follower to the scientists". She soon took up writing career, mainly of short stories, of which many were included in the Foley's and the Best American Short Stories collections. In 1949, they moved to England as David Sayre was enrolled for PhD at the University of Oxford to work under Dorothy Hodgkin (a 1964 Nobel laureate). Anne Sayre financially supported most of their financial expenses through her writings. She eventually got appointed as an editor at the Oxford University Press. David received his PhD in 1951, and in September they returned to US. In 1975, Anne revived her ambition to become a lawyer and got enrolled in New York University Law School, from where she graduated with high grades. She devoted her service in legal matters, particularly concerning environment, in Long Island. She initially served as volunteer Legal Aid lawyer in Riverhead. Later, she was appointed justice in the Head of the Harbor, a post she held until illness prompted her to resign in 1996. Since the late 1980s she had suffered from pneumonia and the complications of scleroderma, a rare form of rheumatism. She died on March 13, 1998 in a hospital near her home in Bridgewater Township, New Jersey, and was survived by her husband.


A: b
****
Q: Question: How old was Scotty Moore when Richards partnered with him for All the King's Men? Passage:In the 1990s and 2000s Richards continued to contribute to a wide range of musical projects as a guest artist. A few of the notable sessions he has done include guitar and vocals on Johnnie Johnson's 1991 release Johnnie B. Bad, which he also co-produced; and lead vocals and guitar on "Oh Lord, Don't Let Them Drop That Atomic Bomb on Me" on the 1992 Charles Mingus tribute album Weird Nightmare. He duetted with country legend George Jones on "Say It's Not You" on the Bradley Barn Sessions (1994); a second duet from the same sessions, "Burn Your Playhouse Down", appeared on Jones' 2008 release Burn Your Playhouse Down – The Unreleased Duets. He partnered with Levon Helm on "Deuce and a Quarter" for Scotty Moore's album All the King's Men (1997). His guitar and lead vocals are featured on the Hank Williams tribute album Timeless (2001) and on veteran blues guitarist Hubert Sumlin's album About Them Shoes (2005). Richards also added guitar and vocals to Toots & the Maytals' recording of "Careless Ethiopians" for their 2004 album True Love, which won the Grammy Award for Best Reggae Album. Additionally, in December 2007 Richards released a download-only Christmas single via iTunes of "Run Rudolph Run"; and the B-side was a 2003 recorded version of the famous reggae song "Pressure Drop" featuring Toots Hibbert singing with Richards backed by original Maytals band members Jackie Jackson and Paul Douglas.


A:
b
****