In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as `a` for Yes or `b` for No.

Ex Input:
Question: Which of the schools that Ari Brynjolfsson attended or worked at has existed the longest? Passage:Ari Brynjolfsson was born in Akureyri, Iceland, one of the seven children of Brynjólfur Sigtryggsson and Guðrún Rósinkarsdóttir from Hörgárdalur. He lived in Krossanes, Eyjafjörður and graduated from Menntaskólinn á Akureyri in 1948, then studied nuclear physics at the Niels Bohr Institute, University of Copenhagen, Denmark, from 1948 to 1954, gaining his PhD, with a thesis which dealt with a device he had constructed for accurately measuring magnetism in rocks. Following this he became a special research fellow of the University of Iceland from 1954 to 1955, then an Alexander von Humboldt fellow of the University of Göttingen, Germany, from 1955 to 1957. While at Göttingen he contributed important work in magnetic moments, using a self-devised instrument with which he and others provided the strongest evidence to that date for magnetic field reversals.


Ex Output:
a


Ex Input:
Question: How much money is in the largest pension fund in Canada? Passage:Caisse de dépôt et placement du Québec (CDPQ; lit. Quebec Deposit and Investment Fund, also referred to in English-language media as the Caisse) is an institutional investor that manages several public and parapublic pension plans and insurance programs in Quebec. It was founded in 1965 by an act of the National Assembly under the government of Jean Lesage. It is the second-largest pension fund in Canada, after the Canada Pension Plan (CPP). As at December 31, 2018, CDPQ managed assets of C$309.5 billion invested in Canada and elsewhere. CDPQ is headquartered in Quebec City in the Price building and has its main business office in Montreal at Édifice Jacques-Parizeau.


Ex Output:
b


Ex Input:
Question: How long had the London Wasps been a team when Volley joined them? Passage:Paul William Volley (born 2 November 1971 in Beckenham, Kent) is an English rugby union player. As an open-side flanker, he played for London Wasps for 16 years. He joined as a 16-year-old from Chinnor. Volley was first called up to the senior England squad by Clive Woodward for the 2000 England rugby union tour of South Africa, and then again for the 2003 England rugby union tour of Australasia. However he was ultimately never capped at this level. He has also been selected for England A on numerous occasions. He has won the Domestic and European competitions with London Wasps. This includes helping them win the Anglo-Welsh Cup in 1999 and 2000; he was a replacement in the 1999 final but started in 2000. After winning both the Zurich Premiership and Heineken Cup with Wasps in 2004, he headed across the Channel to play for Castres Olympique in France. He then returned to play for and captain Wasps' London rivals, Harlequins, and in 2008 signed a 2-year deal to play for RFU Championship side London Scottish.


Ex Output:

b