instruction:
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.
question:
Question: Which tribe was Chief Blackfish the Chief of? Passage:Little documentary evidence of Black Hoof's life appears in the historical record before 1795. As a child he may have been a member of a waundering band of some 400 Shawnees led by Peter Chartier between 1745 and 1748, who founded the community in Kentucky called Eskippakithiki and later moved to Sylacauga, Alabama, eventually settling in Old Shawneetown, Illinois. He probably took part in the Battle of Point Pleasant during Lord Dunmore's War against the Virginia militia in 1774. During the American Revolutionary War, he may have taken part in the siege of Boonesborough in 1778, which was led by Chief Blackfish, as well as the subsequent defense of the Shawnee village of Chillicothe in 1779. In the Northwest Indian War, Black Hoof was defeated by "Mad" Anthony Wayne and, following the collapse of the Indian confederation, surrendered in 1795.

answer:
b

question:
Question: How long was Bill Hewitt the director? Passage:The Billy Bishop Regional Airport in the nearby Municipality of Meaford was named after him. His modest gravesite can be visited in the city's Greenwood Cemetery by those willing to take the time to locate the stone. His boyhood home is now a museum dedicated to his life and to Canada's aviation history. The town was also the home of National Hockey League (NHL) Hall of Fame goaltender Harry Lumley and the artist Tom Thomson (buried in the nearby village of Leith). Surgeon Norman Bethune, an avowed communist and pioneer of public medicine who gained notoriety in his innovative medical work with the Chinese army during the Second Sino-Japanese War, is an alumnus of the Owen Sound Collegiate and Vocational Institute. Legendary hockey broadcaster Bill Hewitt was once sports director of the local AM radio station, CFOS. Thomas William Holmes, another Victoria Cross winner, was also from Owen Sound, and the city's armoury bears his name.

answer:
a

question:
Question: What city did Hercog make her comeback in? Passage:Hercog made her comeback during the clay court season at the Grand Prix SAR La Princesse Lalla Meryem. In the first round, she upset Zhang Shuai 62, 62. In the second round, she defeated Alison Van Uytvanck 61, 64. Hercog was then stopped in the quarterfinals by eventual champion Maria Teresa Torro Flor in two tie-breakers. At the Portugal Open, she beat Stefanie Vogele in the first round. In the second round, she upset sixth seed Lucie Safarova. Hercog lost in the quarterfinals to top seed and eventual champion, Carla Suarez Navarro. Seeded 6th for qualifying at the Internazionali BNL d'Italia, Hercog lost in the first round of qualifying to Belinda Bencic. Her final tournament before the French Open was the Nurnberger Versicherungscup. In the first round, she upset third seed Klara Koukalova in three sets. In the second round, Hercog lost to Karin Knapp. At the French Open, she defeated Jana Cepelova in the first round In the second round, Hercog was defeated by 15th seed Sloane Stephens 61, 63.

answer:
b