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.

Input: Consider Input: Question: To what language family belongs the language from which the word "vanga" is from? Passage:In 1760 the French zoologist Mathurin Jacques Brisson included a description of the hook-billed vanga in his Ornithologie based on a specimen collected on the island of Madagascar. He used the French name L'écorcheur de Madagascar and the Latin Collurio Madagascariensis. Although Brisson coined Latin names, these do not conform to the binomial system and are not recognised by the International Commission on Zoological Nomenclature. When in 1766 the Swedish naturalist Carl Linnaeus updated his Systema Naturae for the twelfth edition, he added 240 species that had been previously described by Brisson. One of these was the hook-billed vanga. Linnaeus included a brief description, coined the binomial name Lanius curvirostris and cited Brisson's work. It is now the only species placed in the genus Vanga that was introduced by the French ornithologist Louis Jean Pierre Vieillot in 1816. The specific name curvirostris is from Latin curvus "curved" and -rostrum "billed". The word "vanga" is the Malagasy name for the species. Two subspecies are recognised.


Output: b


Input: Consider Input: Question: On what album was the Gerry Rafferty song from that is referenced in the show? Passage:While telling Bart and Lisa about 1990, Homer says, "Tracey Ullman was entertaining America with [...] crudely drawn filler material." This is a reference to The Simpsonss debut as "bumpers" airing before and after commercials on The Tracey Ullman Show. The song "Those Were the Days" parodies the opening credits of the television show All in the Family. One of the people who run over the saxophone is a man on a tricycle, who promptly falls over. This is a reference to the show Rowan & Martin's Laugh-In. At the beginning of the flashback, the song "Don't Worry, Be Happy" by Bobby McFerrin can be heard. In the flashback, Dr. Hibbert fashioned his hair and attire like Mr. T in The A-Team. Homer can be seen watching Twin Peaks and The Giant is then shown waltzing with the White Horse. In King Toot's music store, when Homer buys Lisa her first saxophone, there is a guitar in the background that is similar to Eddie Van Halen's "Frankenstrat" guitar. The photo beside Kent Brockman on the news has him modeled after the Coppertone Girl. At the end of the episode, Lisa performs a brief, cruder rendition of the hook of "Baker Street" by Gerry Rafferty on her new saxophone before the music segues into the original song.


Output: b


Input: Consider Input: Question: Which railway company that had control of the Carluke railway station is the oldest? Passage:The first station to be named Carluke was a separate station near Bogside Farm, originally opened as Stirling Road station in 1845 by the Wishaw and Coltness Railway. The current station opened as part of the Caledonian Railway Main Line extension from Beattock on 15 February 1848. It was rebuilt by the Caledonian Railway around the start of the 20th century. It passed to the control of the London, Midland and Scottish Railway (LMS) upon its formation on 1 January 1923 under the terms of the Railways Act 1921 until the nationalisation of the "Big Four" on 1 January 1948 and the resultant creation of British Railways. Thereafter, control of the station, in common with all of those on the WCML north of Gretna, became the responsibility of BR's Scottish Region until the formation of the Greater Glasgow Passenger Transport Executive (GGPTE) on 1 June 1973. Under the terms of the Transport Act 1968, the specification of timetables, fares and quality standards for all rail services within the erstwhile Strathclyde region became the responsibility of the PTE, with trains and stations receiving their distinctive corporate colour scheme from 1985. However, in November 2005, these powers were transferred to the Scottish Executive and were subsequently passed to Transport Scotland upon its creation on 1 January 2006. Consequently, both the station and the rail services which call thereat are today operated by ScotRail.



Output: a