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.

Ex Input:
Question: How old was the Duke of Saxony when he appointed Adolf I to hold Holstein and Stormarn? Passage:He was appointed to hold as fiefs Holstein and Stormarn, including Hamburg, by Lothair, Duke of Saxony, in 1111. By this appointment Adolf became the leader of the defence of Germany against the Wagri. Allied with Henry, the prince of the Obotrites, he repeatedly waged war on Wagria and the Rugians. After Henry's death (1127), Adolf remained allied with his sons Canute and Sventepolk, but they were soon dead and Lothair, by then King of Germany, had made Canute Lavard, a Danish prince, Duke of Schleswig. Feeling his authority threatened by the Danish upstart, Adolf attacked his castle of Albergs, captured the garrison, and destroyed its defences. He left his counties intact to his second son, Adolf II, since his eldest, Hartung, had been killed in the Second Battle of Chlumec in 1126.


Ex Output:
a


Ex Input:
Question: How many years had Tortola been a British colony when Smith was born? Passage:Ethlyn Eugenie Smith was born on 23 April 1940 in the village of Huntums Ghut, on the island of Tortola, at the time a British colony known as the British Leeward Islands to Gladys and Ernest Smith. She completed her primary and secondary education in the islands and worked briefly as a clerical trainee in the civil service of the island. To further her education, she pursued an associates degree from the College of the Virgin Islands in Charlotte Amalie, in the U. S. Virgin Islands. She completed her degree program in accounting in 1968 and went on for further studies at Wandsworth Technical College in London and at the University of Calgary. She graduated from Calgary in 1970 with a bachelor's degree in accounting. During her schooling the country was decolonized and became the British Virgin Islands (BVI), one of the dependencies of the British Overseas Territories.


Ex Output:
a


Ex Input:
Question: Who was the mayor of Sydney the year Wilshire returned to that city? Passage:He was born in Sydney to James Robert Wilshire and Elizabeth Thompson, a member of a prominent and well-connected colonial family. He was educated at Peter Steel's School in Pitt Street and Henry Brown's City Grammar School before studying at the University of Sydney. He was a clerk and land agent at Scone from 1862. In 1883 he returned to Sydney, being now wealthy enough to retire. He was an alderman and mayor of Burwood, and was involved with a number of societies, notably those connected with sanitary reform. In 1889 he was elected to the New South Wales Legislative Assembly as one of the four Free Trade members for Canterbury, but he did not contest the 1891 election. Wilshire moved from Burwood to Neutral Bay, New South Wales in around 1894 (as did his half-brother Henry Austin Wilshire), and lived there until his death in 1909, leaving to his widow a substantial portfolio of local properties. He had no children.


Ex Output:

a