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.

Example Input: Question: Which team won the game on October 16, 2010? Passage:Murray started the 2010 season off with a strong performance of 208 rushing yards and two rushing touchdowns against Utah State. In the next game against Florida State, he had 51 rushing yards and two rushing touchdowns. In the following game against Air Force, he recorded 110 rushing yards and his third consecutive game with two rushing touchdowns. In addition, he had five receptions for 38 yards and a receiving touchdown. After posting 67 rushing yards and a touchdown against Cincinnati in the following game, he had 115 rushing yards and two rushing touchdowns against Texas. On October 16, 2010, with 112 rushing yards and two rushing touchdowns against Iowa State, Murray passed running back Steve Owens as the all-time touchdown leader at the University of Oklahoma with 58 touchdowns. On November 20, against Baylor, he had 62 rushing yards, one rushing touchdown, six receptions, 120 receiving yards, and one receiving touchdown. In his final collegiate game, he had 93 rushing yards and one rushing touchdown against Connecticut in the 2011 Fiesta Bowl. He finished his last season with the Sooners with 1,214 rushing yards, 15 rushing touchdowns, 71 receptions, 594 receiving yards, and five receiving touchdowns. He ended his college career with 65 touchdowns, becoming only the fifth player in Big 12 conference history to score at least 60 career touchdowns.

Example Output: a

Example Input: 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 (198387), 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.

Example Output: b

Example Input: Question: Did Nantz join CBS sports before Billy Packer? Passage:Nantz joined CBS Sports in 1985, initially working as a studio host for the network's college football and basketball coverage, and as an on-course reporter for PGA Tour golf, as well as calling NFL games on Westwood One (from 1988 to 1990, when he was moved to television, Nantz called Sunday Night Football games for what was then called CBS Radio Sports). Nantz has anchored CBS' coverage of the Masters Tournament since 1989. He teamed with Billy Packer to call the NCAA Final Four men's basketball finals from 1991 until 2008. From 2008 to 2013, Clark Kellogg had been his analyst. From 2010 to 2013, Nantz and Kellogg were joined during the Final Four by Steve Kerr of TNT Sports. From 2013 to 2014, Greg Anthony partnered with Nantz. Following Anthony's suspension, Bill Raftery and Grant Hill were selected to replace him and are Nantz's new partners. Leading up to the Final Four, Nantz typically covers the games of the team awarded the overall #1 seed.

Example Output:
b