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: 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: Was the coach that Culverhouse hired younger than the person he replaced? Passage:Former Atlanta Falcons coach Leeman Bennett was named by owner Hugh Culverhouse as the replacement for retired head coach John McKay. Other candidates interviewed included Buccaneer defensive coordinator Wayne Fontes, Seattle Seahawks defensive coordinator Tom Catlin, former Michigan Panthers head coach Jim Stanley, former New England Patriots head coach Ron Meyer, Washington Redskins quarterback coach Jerry Rhome, former Pittsburgh Steelers defensive coordinator Bud Carson, and former Florida Gators coach Charley Pell. Bennett was an unexpected choice, as Fontes had long been considered to be the leading candidate and had the near-unanimous support of the players and existing staff. Culverhouse almost gave Fontes the job without conducting an interview process, before having second thoughts and soliciting recommendations from McKay, Tex Schramm, and Dan Rooney. Described as "heartbroken", Fontes learned while attending a scouting combine in Arizona that he had been passed over for the job. Bennett indicated that nobody who had been a candidate for the head coaching job would be hired as an assistant, ending speculation that he might retain Fontes or bring in his former assistant Jim Stanley. Fontes eventually accepted the defensive coordinator position with the Detroit Lions.


Output: a


Input: Consider Input: Question: Who was the ruler of the Crown of the Polish Kingdom when Königsberg was besieged by Polish forces? Passage:In 1454 the Prussian Confederation rebelled against the Teutonic Knights and formally asked the Polish King Casimir IV Jagiellon to incorporate Prussia into the Kingdom of Poland as a fief. This marked the beginning of the Thirteen Years' War (1454-66) between the State of the Teutonic Order and the Crown of the Kingdom of Poland. While Königsberg's three towns initially joined the rebellion, Altstadt and Löbenicht soon rejoined the Teutonic Knights and defeated Kneiphof in 1455. Grand Master Ludwig von Erlichshausen fled from the crusaders' capital at Castle Marienburg to Königsberg in 1457; the city's magistrate presented Erlichshausen with a barrel of beer out of compassion. When western Prussia was transferred to victorious Poland in the Second Peace of Thorn (1466), which ended the Thirteen Years' War, Königsberg became the new capital of the reduced monastic state, which became a fief of the Crown of the Polish Kingdom. The grand masters took over the quarters of the marshal. During the Polish-Teutonic War (1519–1521), Königsberg was unsuccessfully besieged by Polish forces led by Grand Crown Hetman Mikołaj Firlej.



Output: a