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 is the population of the Middle East country that Jeffrey once served as Deputy Chief of Mission at the American Embassy in 1996? Passage:In 1996 Jeffrey was selected as Deputy Chief of Mission to the American Embassy Kuwait, and served during Operation Desert Fox and the evacuation of Embassy Kuwait. In 1999 he returned to Turkey, as Deputy Chief of Mission. After serving as Ambassador to Albania from 2002 to 2004, he was selected by Secretary of State Colin Powell and Ambassador John Negroponte to bridge the transition from the Coalition Provisional Authority to the new U.S. Embassy in Baghdad, and subsequently served as Deputy Chief of Mission from 2004 to 2005. He served as Charge d'Affaires in Baghdad before returning to Washington to serve as Secretary of State Condoleezza Rice's Special Advisor for Iraq from 2006 to 2007. Jeffrey then served as Principal Deputy Assistant Secretary for Near Eastern Affairs, covering broader Middle East policy matters, including co-chairing the Interagency Iran Policy Group.

Example Output: b

Example Input: Question: What is the birthplace of the person who Hague succeeded in 1905? Passage:Hague first played senior hockey in the Ottawa City Hockey League for the Ottawa Emmetts. He joined the Ottawa Hockey Club during the Silver Seven era, in 1905, succeeding Dave Finnie. In 1906 he was replaced by Percy LeSueur and he joined the Ottawa Victorias for the 190607 season. He played for the Victorias in a Cup challenge against Montreal Wanderers in 1908 losing a two-game series. He later played for Galt, Ontario of the OPHL. With Galt he played in a Stanley Cup challenge against Ottawa losing 74 in 1911. He joined the Moncton Victorias with several other Galt players, winning the Maritime championship and played in another Stanley Cup challenge in 1912 against the Quebec Bulldogs, losing a two-game series. He later played for Halifax Socials and Montreal Wanderers of the NHA. He retired after the 191617 season.

Example Output: a

Example Input: Question: Who was the wife of the ruler that Vasiliy Buturlin was a representative of when he had a meeting with the Zaporozhian Cossacks? Passage:At a meeting between the council of Zaporozhian Cossacks and Vasiliy Buturlin, representative of Tsar Alexey I of the Tsardom of Russia, during the Khmelnytsky Uprising. The "Pereyaslav Council" (Pereyaslavs'ka Rada in Ukrainian) of Ukrainians took place on January 18; it was meant to act as the supreme Cossack council and demonstrate the unity and determination of the "Rus' nation". Military leaders and representatives of regiments, nobles and townspeople listened to the speech by the Cossack hetman Bohdan Khmelnytsky, who expounded the necessity of seeking the Russian protection. The audience responded with applause and consent. The treaty, initiated with Buturlin later on the same day, invoked only protection of the Cossack state by the Tsar and was intended as an act of official separation of Ukraine from the PolishLithuanian Commonwealth (Ukrainian independence had been informally declared earlier in the course of the Uprising by Khmelnytsky). Participants in the preparation of the treaty at Pereyaslav included, besides Khmelnytsky, Chief Scribe Ivan Vyhovsky and numerous other Cossack elders, as well as a large visiting contingent from Russia.

Example Output:
b