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.

Input: Consider Input: Question: Which of Shapovalov's opponents at Gatineau and Drummondville was younger? Passage:In March in Gatineau, Shapovalov captured his fourth ITF Futures singles title after defeating Gleb Sakharov in straight sets. Two weeks later, he won his first ATP Challenger title with a victory over Ruben Bemelmans at the 75K in Drummondville, and was the youngest Canadian to win a Challenger until Felix Auger-Aliassime's victory at the Open Sopra Steria de Lyon later in the year. The next week, he was defeated by Mirza Basic in the final of the ATP Challenger 50K in Guadalajara, stopping his winning streak at 17 matches. At the French Open in May, his first professional Grand Slam, he was defeated in the first round of qualifying by the first seed Marius Copil in three sets. In June, Shapovalov qualified for the ATP 500 at the Queen's Club Championships, his fourth ATP main draw but his first as a qualifier. In the first round, he defeated his second top 50 player, world No. 47 Kyle Edmund, before losing to world No. 14 Tomas Berdych. At Wimbledon in July, Shapovalov was awarded a wild card for the main draw. He was defeated by Jerzy Janowicz in the opening round. At the end of the month, he won his second ATP Challenger title, defeating compatriot Peter Polansky in the final of the 75K in Gatineau.

Output: b

Input: Consider Input: Question: When did the state government whose military aid King Suad refused to fight Britain dissolve? Passage:Within this scheme, Dwight D. Eisenhower offered a 25 million dollar loan to the Saudi Government on 24 January 1957. In return, King Saud explained that he had refused Soviet Union military aid to fight Britain, and that Britain's policy was what urged the Arabs to seek the Soviet Union's help. He also stressed that non-aligned countries were benefiting from Soviet aid more than the American allied countries were benefiting from American aid. He considered that this aid should double if the American President wished to succeed in his endeavors. King Saud asked Dwight D. Eisenhower to exert pressure on Israel to withdraw from the occupied territories of Palestine and settle the Palestinian cause, and to convince France to reach a settlement regarding the independence of Algeria. On the other hand, he promised to inform the Arabs of the Eisenhower Doctrine and its purposes; and to inquire about the Arab reaction on the official and officious levels before making any commitments. King Saud explained to the American President that a large bulk of his country's budget was allocated to development projects and to the five-year plan and that he needed military aid before being able to play any role expected from him in fighting communism. The American government agreed to give him a 250 million dollar loan and all kinds of land, sea and air weaponry, and to train the Saudi army on how to use them.

Output: b

Input: Consider Input: Question: How old was King Henry IV when Heimburg Castle was built? Passage:After the deposition of the Saxon duke Henry the Lion in 1180, the Regenstein counts were temporarily arrested by the forces of Emperor Frederick Barbarossa, but were reconciled with the Hohenstaufen monarch soon after. After a lengthy feud Heimburg Castle, built about 1170 by King Henry IV and soon after devastated during the Saxon Rebellion, was acquired by the Regenstein counts in the early 14th century. The Regenstein-Heimburg branch re-united the Regenstein and Blankenburg estates in 1343, under the rule of the most renowned Count Albert II (131049), who since the 1330s was frequently in dispute with the leaders of the surrounding estates like the Halberstadt bishops and the Abbesses of Quedlinburg; he was finally assassinated by the henchmen of Bishop Albert II of Halberstadt. These tales were romanticised in the ballad The Robber Count () by Gottfried August Burger, melodized by Johann Philipp Kirnberger and the novel of the same name by Julius Wolff.
Output: a