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: Who was the leader of the Porte in 1912? Passage:The modern Albanian-Serbian conflict has its roots in the expulsion of the Albanians in 1877-1878 from areas that became incorporated into the Principality of Serbia. Prior to the outbreak of the First Balkan War, the Albanian nation was fighting for a national state. At the end of 1912, the Porte recognised the autonomy of Albanian vilayet. These events for Albanian autonomy and Ottoman weakness were viewed at the time as directly threatening the Christian population of the region with extermination. The Balkan League (comprising Serbia, Montenegro, Greece and Bulgaria) jointly attacked the Ottoman Empire and during the next few months partitioned all Ottoman territory inhabited by Albanians. The Kingdom of Serbia and the Kingdom of Greece occupied most of the land of what is today Albania and other lands inhabited by Albanians on the Adriatic coast. Montenegro occupied a part of today's northern Albania around Shkodër. The Serbian army in the region viewed its role as protecting local Orthodox Christian communities and avenging the medieval battle of Kosovo, though it forced Catholic Albanians to convert to Orthodox Christianity.

Example Output: a

Example Input: Question: Who are the Gestapo? Passage:On 30 June 1943 he was arrested by the Gestapo in Warsaw and sent to Berlin. Rowecki was arrested due to his betrayal by Ludwik Kalkstein "Hanka", Eugeniusz Swierczewski "Genes" and Blanka Kaczorowska "Sroka" who were Gestapo agents. All of them were members of the Home Army but in fact collaborated with the Gestapo. Swierczewski, Kalkstein and Kaczorowska were sentenced to death for high treason by the Secret War Tribunal of the Polish Secret State. The sentence on Eugeniusz Swierczewski was carried out by troops commanded by Stefan Rys ("Jozef"). They hanged Swierczewski in the basement of the house at 74 Krochmalna Street in Warsaw. Kalkstein received protection from the Gestapo and was not harmed. He fought in a Waffen SS unit during the Warsaw Uprising of 1944 under the name of Konrad Stark. After the war, he worked for the Polish Radio station in Szczecin and was later recruited as an agent by the Urząd Bezpieczeństwa. In 1982, he emigrated to France; he died in 1994. Blanka Kaczorowska also survived the war. Her death sentence was not carried out because she was pregnant. After the war, she also worked as a secret agent for the Urząd Bezpieczeństwa and later for the renamed Służba Bezpieczeństwa. She emigrated to France in 1971. She died in 2002

Example Output: b

Example Input: Question: What is the birthplace of the artist who recorded "Sway"? Passage:Gimbel was born on November 16, 1927 in Brooklyn, New York, the son of Lottie (Nass) and businessman Morris Gimbel. His parents were Austrian Jewish immigrants. Gimbel was self-taught in music and following initial employment with music publisher David Blum, progressed to become a contract songwriter with Edwin H. Morris Music. Small successes and moderate fame came as a result of lively novelty songs "Ricochet", which was popularized in a 1953 recording by Teresa Brewer from which was developed the 1954 Judy Canova film Ricochet Romance, and "A Whale of a Tale", sung by Kirk Douglas in another 1954 production, Disney's 20,000 Leagues Under the Sea. Greater success was earned with Dean Martin's recording of "Sway", which reached #6 on the UK Singles Chart, followed by his first big success, Andy Williams' rendition of "Canadian Sunset", which scored to #1 in 1956.

Example Output:
b