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.

[EX 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.

[EX A]: b

[EX Q]: Question: Did Sargis Tmogveli survive the capture of the city of Kars? Passage:Shalva was one of the most notable military commanders during a series of expansionist wars waged by the Kingdom of Georgia under Queen Tamar (r. 1184–1213). He consecutively held top posts of mechurchletukhutsesi (Lord High Treasurer) and mandaturtukhutsesi (Lord High Mandator) at Tamar’s court. Together with his brother Ivane, Shalva was in command of vanguard traditionally composed of the Meschian troops from south Georgia. In the battle of Shamkor against the Ildenizid atabeg of Azerbaijan in 1195, he captured a war banner sent by the Caliph to the Muslim army which was then donated to the revered icon of Our Lady of Khakhuli. In 1206/1207, Shalva, together with Sargis Tmogveli, took hold of the city of Kars from the Seljuqs and was appointed as the governor of the Kars county.

[EX A]: b

[EX Q]: Question: What was the first year LSU went to the Final Four? Passage:The Tigers improved again in the 1980–1981 season. In fact, it would be the winningest year in LSU history. This year, Dale Brown took his team to the Final Four, the second in LSU history, and the first of the Dale Brown era. The team finished 31–5 (most wins in the nation) and won the conference championship with a 17–1 record. The team also set a school record winning 26 straight games, including its first 17 conference games and the only SEC team to ever win 17 consecutive league games in the same season with only a loss to powerhouse Kentucky in Rupp Arena stopping LSU from becoming the only team to complete an 18-game SEC slate with an unblemished mark. Rudy Macklin was an All-American, as well as First Team All SEC. Ethan Martin also made First Team All SEC, and Howard Carter made the Second Team. LSU advanced to the Final Four by beating Wichita State 96–85 in the Elite 8 round of the 1981 NCAA tournament, played in front of home-state fans in the Louisiana Superdome. To reach the regional final, LSU defeated future SEC rival Arkansas, coached at the time by Eddie Sutton, who would tangle with Brown for four seasons at Kentucky.

[EX A]:
a