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: How long had Ferdinand I been in power the year Coimbra fell? Passage:The history of the county of Portugal is traditionally dated from the reconquest of Portus Cale (Porto) by Vímara Peres in 868. He was named a count and given control of the frontier region between the Limia and Douro rivers by Alfonso III of Asturias. South of the Douro, another border county would be formed decades later when what would become the County of Coimbra was conquered from the Moors by Hermenegildo Guterres. This moved the frontier away from the southern bounds of the county of Portugal, but it was still subject to repeated campaigns from the Caliphate of Córdoba. The recapture of Coimbra by Almanzor in 987 again placed the County of Portugal on the southern frontier of the Leonese state for most of the rest of the first county's existence. The regions to its south were only again conquered in the reign of Ferdinand I of León and Castile, with Lamego falling in 1057, Viseu in 1058 and finally Coimbra in 1064.

[A]: b


[Q]: Question: Does the town where Abernethy was was born have a larger current population than the nearby port town his family moved to when he was a child? Passage:Thomas Abernethy was born in 1803 at Longside in northeast Scotland. While he was a child, his family moved to Peterhead, a nearby port. His parents were James Abernethy, a stonemason, and Isabella Robertson. Thomas had an elder sister, Ann, who was born in 1801, and twin brothers, James and William, who were both born in 1816. Thomas went to sea at the age of ten and when he was about twelve he was apprenticed as a merchant seaman on the sloop Friends. He travelled to the West Indies and twice to Newfoundland. In 1819, he became a greenhand on the maiden voyage of the Peterhead whaling ship Hannibal, which hunted bowhead whales around the eastern coast of Greenland, and in its third season sailed into the Davis Strait on the western coast, where ice conditions can be much heavier. In 1829, Abernethy married Barbara Fiddes, the daughter of a ship's carpenter, and they lived at Deptford, southeast London, near the Royal Naval docks. They had no children.

[A]: b


[Q]: Question: How long had he been friends with David Lewis? Passage:Whale was born into a large family in Dudley, Worcestershire. He discovered his artistic talent early on and studied art. With the outbreak of World War I he enlisted in the British Army and became an officer. He was captured by the Germans and during his time as a prisoner of war he realized he was interested in drama. Following his release at the end of the war he became an actor, set designer and director. His success directing the 1928 play Journey's End led to his move to the US, first to direct the play on Broadway and then to Hollywood, California, to direct films. He lived in Hollywood for the rest of his life, most of that time with his longtime companion, producer David Lewis. Apart from Journey's End (1930), which was released by Tiffany Films, and Hell's Angels (1930), released by United Artists, he directed a dozen films for Universal Pictures between 1931 and 1937, developing a style characterized by the influence of German Expressionism and a highly mobile camera.

[A]:
b