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: What institution did Fukuyama work for the year START II was signed? Passage:In August 1991, hard-line Communists launched a coup against Gorbachev; while the coup quickly fell apart, it broke the remaining power of Gorbachev and the central Soviet government. Later that month, Gorbachev resigned as general secretary of the Communist party, and Russian president Boris Yeltsin ordered the seizure of Soviet property. Gorbachev clung to power as the President of the Soviet Union until December 1991, when the Soviet Union dissolved. Fifteen states emerged from the Soviet Union, and of those states, Russia was the largest and most populous. Bush and Yeltsin met in February 1992, declaring a new era of "friendship and partnership". In January 1993, Bush and Yeltsin agreed to START II, which provided for further nuclear arms reductions on top of the original START treaty. The collapse of the Soviet Union prompted reflections on the future of the world following the end of the Cold War; one political scientist, Francis Fukuyama, speculated that humanity had reached the "end of history" in that liberal, capitalist democracy had permanently triumphed over Communism and fascism. Meanwhile, the collapse of the Soviet Union and other Communist governments led to post-Soviet conflicts in Central Europe, Eastern Europe, Central Asia, and Africa that would continue long after Bush left office.

Example Output: a

Example Input: Question: Was the waverly route entirely within the Scottish borders? Passage:The Waverley Route spawned a series of branches serving the towns and villages in the Scottish Borders: a branch line from Kelso Junction near reached Kelso where it met an NER branch from . The NBR Chairman, Richard Hodgson, sought to link the Waverley Route with the Edinburgh-Berwick line between Ravenswood Junction, north of St Boswells, and ; the branch between Reston and Duns had been completed in 1849 and a western section to St Boswells was promoted as the Berwickshire Railway. It opened throughout on 2 October 1865. Other towns to be connected were Jedburgh by the independent Jedburgh Railway which was inaugurated on 17 July 1856 and worked by the NBR, and Selkirk via the Selkirk and Galashiels Railway, also opened in 1856 and operated by the NBR, while Langholm received a branch from , and Gretna one from . One of the last branches to be constructed was the Lauder Light Railway in 1901; this replaced an omnibus subsidised by the NBR providing access from the town of Lauder, famed for its trout, and connecting with trains at .

Example Output: a

Example Input: Question: Which raceway made the most money the year Obaika Racing entered competition, Daytona International Speedway or Richmond International Raceway? Passage:Obaika Racing entered competition in 2015. The team signed driver Josh Reaume, who met team owner Victor Obaika while on humanitarian missions in Africa as a child. The 97 team debuted at the Daytona International Speedway in the Xfinity Series season-opening Alert Today Florida 300, with Reaume finishing 23rd. After three races, with one DNQ, Peyton Sellers replaced Reaume. In April 2015, the team secured their first sponsor vacation provider VroomBrands, which is owned by Obaika. VroomBrands wrapped the No. 97 in designs such as a Zebra representing their African safari package (debuted at Richmond International Raceway) and the Cheetah print representing their tours in Asia (debuted at Talladega Superspeedway). At the Winn-Dixie 300 at Talladega, Sellers scored the team's first top-20 finish, finishing 18th despite being involved in a ten-car wreck that sent cars spinning down pit road. Johanna Long replaced Sellers for the U.S. Cellular 250 at Iowa Speedway. After one more start for Sellers at Watkins Glen, the team introduced various drivers for the rest of the season. Dylan Kwasniewski debuted with the team in the Nationwide Children's Hospital at Mid-Ohio Sports Car Course, finishing 34th due to mechanical problems after running in the top 10. Kwasniewski would run the next two races for the team. Parker Kligerman drove the car in the VFW Sport Clips Help a Hero 200 at Darlington Raceway, Mason Mingus in the Furious 7 300 at Chicagoland Speedway, and Ryan Ellis in the Hisense 200 at the Dover International Speedway.

Example Output:
a