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 game systems on which Mappy was released in 2005 sold the most units? Passage:A Japan-only port of the game was initially released for the Famicom (Japanese version of the NES) and MSX in 1984, followed by a later port to the Sega Game Gear in 1991. This was followed by a video game console-only sequel called Mappy-Land in 1986 (released in the United States by Taxan). In 1998, it was re-released as part of Microsoft Revenge of Arcade for the PC. Mappy also had several Japan-only sequels, including Hopping Mappy in 1986 for the arcades and Mappy Kids in 1989 for the Famicom. There is also a version called Mappy Arrangement which was released in 1995 as part of Namco Classic Collection Vol. 1 in 1995 for the arcades. The Famicom version of the original Mappy was re-released in Japan as part of the Famicom Mini Series in 2004. Mappy is included on the Ms. Pac-Man collection manufactured by Jakks Pacific. It is also featured in the 1996 Game Boy compilation Namco Gallery Vol. 1 and on the later , released on the Xbox, GameCube, PC, and PlayStation 2 in 2005 (it did not appear in the Game Boy Advance version), and also appears on Namco Museum DS. Mappy was also re-released as part of the Pac-Man's Arcade Party arcade machine in 2010. Mappy is playable in the PlayStation Portable version of Namco Museum Battle Collection. Mappy was included as a Dot-S set. It is also one of the first arcade titles to have been released on the Virtual Console. In 2002, it was released in Japan as a pachinko under the title of Mappy Park. In 2003, two mobile games were released in Japan with the titles and , in 2009 titled , the September 2011, the new mobile game titled , and Bandai Namco Games was bringing back to series titled for iOS on 2015 in Japan.

Ex Output:
a

Ex Input:
Question: How many copies have sold of the book that Lynch discussed at its 500th anniversary in 2011? Passage:At Boston College, Lynch was a Bradley Postdoctoral Fellow. He taught at the University of Dallas Rome campus. In 2005, he participated in ISI/Jack Miller Center's Lehrman Summer Institute. In 2006, he was Faculty Fellow at the Foundation for Defense of Democracies. Between 2006 and 2007, Lynch was Senior Advisor at the United States Department of State. And in 2011, he was a faculty member on the Hertog Political Studies Program in Washington, D.C. Lynch was granted the Olin Faculty Fellowship to support his work on a new book about Machiavelli's thoughts on war. Additionally, on the 500th anniversary of the writing of Machiavelli's The Prince, Lynch was discussant in the "Machiavelli's The Prince at 500: Rereading The Prince in the 21st Century" Panel at the 2013 American Political Science Association (APSA) Annual Meeting and Exhibition in Chicago, and he spoke at Harvard University on the question of whether Machiavelli is a philosopher. Lynch has been a part of workshops and seminars at Army War College, Naval War College, and National Defense University. Additionally, he has presented lectures at the Air Force Academy and the National War College. Currently, Lynch is Professor of Great Ideas and Political Science at Carthage College.

Ex Output:
b

Ex Input:
Question: What were jet fuel prices in 1975? Passage:In addition to withdrawing from the prestigious long-haul routes to New York and Los Angeles after only 18 months, other specific measures the airline took at the time to ensure its survival included dropping all scheduled flights to Belfast, Copenhagen, Gibraltar, Ibiza, Malaga, Palma de Mallorca and Tunis, indefinitely suspending scheduled services on the GlasgowSouthampton route as well as cutting the number of frequencies on the GatwickGlasgow and GatwickEdinburgh routes from six to four daily round trips. Two surplus aircraft were leased out to Air Malta and Austrian Airlines respectively for the duration of the 1975 summer timetable period. Another aircraft was stationed at West Berlin's Tegel Airport during the month of July of that year to fulfill a short-term charter contract to carry Turkish migrant workers to and from Istanbul on behalf of a local tour operator. BCal also decided to increase its 707 freighter fleet from one to four aircraft and to acquire a five-seater Piper Aztec to serve the rapidly growing executive charter market. These changes left BCal with 25 operational aircraft for the 1975 summer season. To reduce operating costs further, the airline decided to contract out its scheduled operations between Gatwick and Le Touquet to BIA. The reason for replacing BCal's One-Eleven 200 jet aircraft on this route with that airline's Herald turboprops at the beginning of the 1975 summer timetable period was the high price of jet fuel, which had made BCal's own jet aircraft operations uneconomic.

Ex Output:
b