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.

[EX Q]: Question: Who was the manager of Manchester United when Duncan Edwards died as a result of the Munich air disaster? Passage:The most famous former resident of the Priory Estate is Duncan Edwards, who was born two miles away at Holly Hall but moved to 31 Elm Road as a small child and went on to play 18 times for England as well as winning two Football League championships with Manchester United before he died in 1958 at the age of 21 from injuries sustained in the Munich air disaster. As a child, he had attended Priory Primary School and then Wolverhampton Street School. The school is most famous for being the former school (1941 to 1948) of the late Duncan Edwards, the former Manchester United and England footballer. He died aged 21 as a result of the Munich air disaster in 1958. After his death, a stained glass window was dedicated to Edwards at St Francis parish church at the junction of Laurel Road and Poplar Crescent. The church was founded during 1931 and originally based at Priory Hall before the church building on the newly developed housing estate was opened on 10 May 1932.

[EX A]: b

[EX Q]: Question: Where did the scientist Nash completed his postdoctoral research with attend college? Passage:Born in Exeter, England, and grew up in Sudbury, Ontario, Canada. In high school he competed in the Canada-Wide Science Fair in five successive years (1983–87), winning awards on each occasion and becoming one of the most highly awarded science fair participants in the history of the fair. In recognition of this he was selected to represent Canada as one of two youth delegates to the 1985 Nobel Prize lectures and ceremony in Stockholm, Sweden as part of the Stockholm International Youth Science Seminar and was awarded the International Youth Year Ontario Gold Medal. He received a BSc with honours in biochemistry from the University of Guelph, and the Chemical Institute of Canada prize for the top of class. He received a PhD in 1999 from the University of Alberta working in the laboratory of Dr. Grant McFadden investigating poxviral immunomodulatory proteins. His doctoral thesis focused on the enzymology and biological properties of the Myxoma virus encoded serine proteinase inhibitor (serpin), SERP-1. He completed postdoctoral research with Anthony Pawson at the Samuel Lunenfeld Research Institute of Mount Sinai Hospital and the University of Toronto from June 1999 to December 2003. In 2014, Nash received an MBA with a concentration in finance awarded with high honors from the University of Chicago Booth School of Business.

[EX A]: b

[EX Q]: Question: Which of the Beatles who used the Gibson J-160E were older when they died? Passage:Both John Lennon and George Harrison used the Gibson J-160E, an acoustic guitar with an electric pickup at the base of the fretboard. The resonant character of the full acoustic body, combined with the electric pickup, meant that this guitar was susceptible to feedback, employed to great effect on the intro to "I Feel Fine". Lennon also used a Framus Hootenanny twelve-string acoustic, which can be seen in the movie Help! and heard on the title song and "You've Got to Hide Your Love Away". This twelve-string guitar accounted for audibly richer rhythm guitar parts on songs like these, in comparison to the six-string Gibsons. After Sgt. Pepper's Lonely Hearts Club Band, Lennon moved on to a Martin D-28 from C. F. Martin & Company (alternating between the J-160E and the D-28 for The White Album) while Harrison upgraded to a Gibson J-200 Jumbo (which Lennon used on "Two of Us" and other acoustic tracks on Let It Be).

[EX A]:
b