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: When was the star in Draco that is visible primarily in the northern hemisphere discovered? Passage:Like the star Epsilon Draconis in the constellation of Draco, Beta Cephei is visible primarily in the northern hemisphere, given its extreme northern declination of 70 degrees and 34 minutes. It is nevertheless visible to most observers throughout the world reaching as far south as cities like Harare in Zimbabwe, Santa Cruz de la Sierra in Bolivia or other settlements north 19South latitude. It is circumpolar throughout all of Europe, northern Asia, and North American cities as far south as Guadalajara in west central Mexico. All other locations around the globe having a latitude greater than 20North will notice that the star is always visible in the night sky. Because Beta Cephei is a faint third magnitude star, it may be difficult to identify in most light polluted cities, though in rural locations the star should be easily observable.

Example Output: a

Example Input: Question: Was WB Network more popular than Fox Television the year Black Family Channel folded? Passage:In 1987, Townsend wrote, directed and produced Hollywood Shuffle, a satire based on the hardships and obstacles that black actors undergo in the film industry. The success of his first project helped him establish himself in the industry. Another of his films was The Five Heartbeats based on 1960s R&B male groups and the tribulations of the music industry. Townsend created and produced two television variety showsthe CableACE awardwinning Robert Townsend and His Partners in Crime for HBO, and the Fox Television variety show Townsend Television (1993). He also created and starred in the WB Network's sitcom The Parent 'Hood which originally ran from January 1995 to July 1999. In 2018, Townsend also directed 2 episodes for the B.E.T. Series American Soul which began airing in 2019. The show is about Don Cornelius and Soul Train. Townsend was programming director at the Black Family Channel, but the network folded in 2007. Townsend created The Robert Townsend Foundation, a nonprofit organization whose mission is to introduce and help new unsigned filmmakers.

Example Output: a

Example Input: Question: Which of the wars that Ray served in had the most casualties? Passage:Rear Admiral Herbert James Ray (1 February 1893 3 December 1970) was an officer in the United States Navy who served in World War I and World War II. A 1914 graduate of the Naval Academy, he served on the submarines and during World War I. In March 1942, as Chief of Staff and Aide to the Commandant of the Sixteenth Naval District, Rear Admiral Francis W. Rockwell, he participated in General Douglas MacArthur's escape from the Philippines. In Australia, he served with MacArthur's General Headquarters, Southwest Pacific Area staff. In September 1943, he became Captain of the battleship , which he commanded in the Battle of Tarawa, Battle of Kwajalein, Battle of Saipan and the Battle of Peleliu. In October 1944, he participated in the Battle of Surigao Strait, in which Maryland joined the other battleships in engaging the Japanese battleships and and their escorts. Ray left Maryland in December 1944, and was appointed Deputy Director of the Naval Division of the US Control Group Council for Germany. After VE Day, he became the Junior United States Member of the Tripartite Naval Commission in Berlin. He retired from the Navy on 30 June 1949, and received a tombstone promotion to rear admiral due to his combat decorations.

Example Output:
a