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: How old is the award that the West Coast eagles received in 2010? Passage:The 2011 season was the West Coast Eagles' 25th season in the premier Australian rules football competition, the Australian Football League (AFL). The previous season, West Coast had finished 16th and last overall to receive their first wooden spoon. The club began the season by reaching the semi-finals of the league's pre-season knock-out competition, the NAB Cup. They began their season with a four-point win over on Sunday, 27 March. At the conclusion of round 10, West Coast had won five of their nine games and lost four, but over the remainder of the season won 12 of their 13 games to finish fourth at the end of the regular season. In the finals series, the club lost their qualifying final to by 20 points. They defeated in a home semi-final, but lost to , the eventual premiers in a preliminary final at the MCG the following week, to finish fourth overall.

Example Output: a

Example Input: Question: How many years has the U.S. supported the World Trade Organization? Passage:However, Berman concurs with many on the right on a number of issues, particularly foreign policy and trade. Berman voted in support of the invasion of Iraq in both 1991 and 2003, as well as for the FISA Amendments Act of 2008, positions that have hurt his standing among many liberals in his district. While he generally supports free trade - for instance, voting in favor of the North American Free Trade Agreement (NAFTA) and various trade agreements with specific countries -, he voted against the more recent Central America Free Trade Agreement (CAFTA). He opposes withdrawing U.S. support for the World Trade Organization. In that same year, he also voted to phase out many farm subsidy programs put into place by the administration of President Franklin Delano Roosevelt as part of the "New Deal."

Example Output: a

Example Input: Question: Does the country that was governed by The Bogd Khanate border China? Passage:The Bogd Khanate of Mongolia was the government of Mongolia (Outer Mongolia) between 1911 and 1919 and again from 1921 to 1924. By the spring of 1911, some prominent Mongolian nobles including Prince Tögs-Ochiryn Namnansüren persuaded the Jebstundamba Khutukhtu to convene a meeting of nobles and ecclesiastical officials to discuss independence from the Manchu-led Qing China. On November 30, 1911 the Mongols established the Temporary Government of Khalkha. On December 29, 1911 the Mongols declared their independence from the collapsing Qing Empire following the Xinhai Revolution. They installed as theocratic sovereign the 8th Bogd Gegeen, highest authority of Tibetan Buddhism in Mongolia, who took the title Bogd Khaan or "Holy Ruler". The Bogd Khaan was last khagan of Mongolia. This ushered in the period of "Theocratic Mongolia", also known as the Bogd Khanate.

Example Output:
b