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 did the battle where George was appointed colonel for last? Passage:Randall enlisted as a private in the 4th Pennsylvania Volunteer Infantry in the April 1861. He then accepted appointment to the 4th U.S. Infantry as second lieutenant in October. He served in New York and Washington, D.C., and in the field with the Army of the Potomac. He was a second lieutenant at the Siege of Yorktown, Battle of Gaines' Mill, Battle of Malvern Hill, Second Bull Run (where he commanded Company C), and Fredericksburg; and a first lieutenant at the Battle of the Wilderness. He was appointed a brevet captain for gallant service in the Battle of Antietam. He served as a major in the 14th New York Heavy Artillery Regiment, part of Major General Ambrose Burnside's IX Corps on the Richmond-Petersburg Front in 1864, and was commander of the regiment at the Battle of the Crater. The Dansville Advertiser reported on 7 September that he assumed command of the regiment on 18 August. This article also reports that he was wounded in the battle on 19 August. He was appointed a brevet lieutenant colonel, and then colonel for gallantry in the Battle of Fort Stedman. He mustered out of the Volunteer service on 26 August, and was appointed captain in the 4th US Infantry on 23 September 1865. Subsequently, he served at Davids' Island Military Reservation, New York Harbor, where he was in December 1867.

[A]: b


[Q]: Question: Who was the main author of the Magna Carta? Passage:During the 24 November 1999 Parliamentary debate on the rule of law, Jeyaretnam traced the doctrine to the Magna Carta, and said that it was to be found in the Constitution of Singapore, particularly in Article 9 and Article 12, which respectively protect the rights to life and personal liberty, and equality rights. He also noted that in the court judgment Ong Ah Chuan v Public Prosecutor (1980), the Privy Council had held that in phrases such as "in accordance with law" and "equality before the law" in the Constitution, the term law does not only mean Acts passed by Parliament, but also includes the fundamental rules of natural justice that have been accepted and become part and parcel of the common law. He then cited eight instances of the Government's alleged non-compliance with the rule of law, including detention without trial under, inter alia, the ISA and the Criminal Law (Temporary Provisions) Act ("CLTPA"); denial of the right of arrested persons to counsel and to visits from their families for a period of time; denial of the rights to freedom of speech and assembly; and the tendency of the executive not to provide reasons for decisions made. Opposition MP Chiam See Tong complained that the Government had not treated opposition parties fairly as regards applications for licences for events.

[A]: a


[Q]: Question: How long did the general who captured Roussel rule as the Byzantine Emperor? Passage:He was present at the Battle of Manzikert in 1071, where he refused to join the fray; the battle proved to be a disastrous defeat for the Byzantines. Despite this treachery, he was kept in imperial service, where good generals were needed, and was sent into Asia Minor again with a force of 3,000 Franco-Norman heavy cavalry. There Roussel conquered some territory in Galatia and declared it an independent state in 1073, with himself as prince, following the example set by his fellow Normans in the Mezzogiorno. His capital was Ankara, now the capital of Turkey. He defeated the Caesar John Ducas and sacked Chrysopolis, near Constantinople. He even supported a usurper candidate, but by formally ceding lands that the Seljuk Turks had actually conquered, the emperor Michael VII persuaded the Seljuk warlord Tutush I to remove Roussel. However both Ducas and Roussel were defeated and captured by Turkish forces, fortunately for Roussel his wife was able to pay the ransom demanded by the Turks allowing Roussel to return to Amasea, where the population so loved him that he made himself undisputed governor. He was given up by the people through a ploy of Alexius Comnenus (1074), then a general, later an emperor. 

[A]:
b