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.

[Q]: Question: Which states aided the Latin Empire under the benner "Crusader States"? Passage:The Nicaean–Latin wars were a series of wars between the Latin Empire and the Empire of Nicaea, starting with the dissolution of the Byzantine Empire by the Fourth Crusade in 1204. The Latin Empire was aided by other Crusader states established on Byzantine territory after the Fourth Crusade, as well as the Republic of Venice, while the Empire of Nicaea was assisted occasionally by the Second Bulgarian Empire, and sought the aid of Venice's rival, the Republic of Genoa. The conflict also involved the Greek state of Epirus, which also claimed the Byzantine inheritance and opposed Nicaean hegemony. The Nicaean reconquest of Constantinople in 1261 AD and the restoration of the Byzantine Empire under the Palaiologos dynasty did not end the conflict, as the Byzantines launched on and off efforts to reconquer southern Greece (the Principality of Achaea and the Duchy of Athens) and the Aegean islands until the 15th century, while the Latin powers, led by the Angevin Kingdom of Naples, tried to restore the Latin Empire and launched attacks on the Byzantine Empire.

[A]: b


[Q]: Question: Is Vitebsk the capital of a country? Passage:A.P. Rosengolts was born in Vitebsk on November 4, 1889. He was the son of a Jewish merchant. He joined the Bolshevik faction of the Russian Social-Democratic Workers' Party (RSDRP) in 1905, the year of the first, abortive Russian Revolution. He worked as an insurance agent and carried out work for the Bolshevik party in Vitebsk, Kiev, Ekaterinoslav and Moscow. Rosengolts played an active role in the Revolution of 1917. He was a member of the Executive Committee of the Moscow City Council, the Moscow Military-Revolutionary Committee and the All-Russian Military-Revolutionary Committee. He was a leading officer in the Red Army and, during the Russian Civil War, worked closely with L.D. Trotsky. After the Civil War, Rosengolts worked successively for the Commissariats of Transportation and Finance and the Directorate of the Red Army Air Force. He served as ambassador to Britain from 1925 to 1927 and oversaw Soviet espionage in Britain. He became a member of the Central Committee of the Communist Party of the Soviet Union in 1927 and held various high positions in the Communist Party and the Soviet government. In 1930 he was appointed People's Commissar of Foreign Trade. On June 14, 1937, Rosengolts was dismissed from this office and on October 7, 1937, he was arrested. He was one of the defendants of the third Moscow Trial, along with Nikolai Bukharin, Alexey Rykov and other prominent Soviet officials. The accused faced a long list of capital charges, including plotting to assassinate Lenin and Stalin, espionage and sabotage. Like most of his co-defendants, Rosengolts confessed. He was convicted, sentenced to death and shot on March 15, 1938 in Moscow. He was rehabilitated in 1988.

[A]: b


[Q]: Question: How many years of age difference exists between the actresses that play a 40-year-old country music superstar singer and a bubblegum country pop singer and former teen star sensation on the show Nashville? Passage:The show features an ensemble cast. For the first season, nine actors received the star billing: Connie Britton as Rayna Jaymes, a 40-year-old country music superstar singer whose stardom is beginning to fade; Hayden Panettiere as Juliette Barnes, a bubblegum country pop singer and former teen star sensation who is determined to replace Rayna as the top superstar of country music; Clare Bowen as Scarlett O'Connor, a poet and songwriter Deacon's niece, and musician partner with Gunnar who works at the Bluebird Cafe which is where she is first noticed and performs; Eric Close as Theodore "Teddy" Conrad, Rayna's husband who, after a business failure, is now living on his wife's income. He runs for mayor with help from his father-in-law and wins election, later divorcing Rayna; Charles Esten as Deacon Claybourne, songwriter, lead guitar player, Rayna's former lover and biological father of her oldest child.; Jonathan Jackson as Avery Barkley, an aspiring musician with a bad-boy streak. He and Scarlett are in a relationship when the series begins, but soon separate; Sam Palladio as Gunnar Scott, a kind-hearted aspiring musician who dates Scarlett in season one, and dates Zoey in season two; Robert Wisdom as Coleman Carlisle, a one-time mayoral candidate, and later Deputy Mayor, close friend of Rayna, and serves as Deacon's sobriety sponsor; and Powers Boothe as Lamar Wyatt, Rayna's father and a wealthy, powerful and controlling patriarch and local politician who disapproves of his daughter's career as a country singer.

[A]:
b