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 Input:
Question: How much time was between the periods? Passage:Prior to Nepal’s unification, Srēṣṭha was a collective high-status title given to those Hindu clans referred to as 'Bhāju' (from Sanskrit bhadralok) who served as the key non-Brahmin class of ruling, administrative and merchant class of the Malla courts. From within this broad Srēṣṭha groups are two distinct caste groups. First, they count among them the high-caste aristocratic Kshatriyas, locally pronounced as Chatharīya, who are descended from the nobles and courtiers of the Malla period and consist of the ruling, land-owning and literate Hindu caste group of the Nepal Mandala, which later formed the core of government bureaucracy during the Shah and Rana period. Second, Srēṣṭha title is also attributed to the Pāñchthariya, who now mostly write their surnames as 'Shrestha', who were historically the Hindu merchant clans of the Valley, as opposed to the Buddhist merchant caste of Urāy. These Pāñchthariyas have Vaishya status in the traditional varna framework. Srēṣṭha group has also incorporated in it the socially upward Jyapu farmers and other peasants especially outside the Valley as a means of the Sanskritisation process, although their status is not accepted by the upper-level Srēṣṭha castes.


Ex Output:
a


Ex Input:
Question: When was the star in Draco that is visible primarily in the northern hemisphere discovered? Passage:Like the star Epsilon Draconis in the constellation of Draco, Beta Cephei is visible primarily in the northern hemisphere, given its extreme northern declination of 70 degrees and 34 minutes. It is nevertheless visible to most observers throughout the world reaching as far south as cities like Harare in Zimbabwe, Santa Cruz de la Sierra in Bolivia or other settlements north ± 19° South latitude. It is circumpolar throughout all of Europe, northern Asia, and North American cities as far south as Guadalajara in west central Mexico. All other locations around the globe having a latitude greater than ± 20° North will notice that the star is always visible in the night sky. Because Beta Cephei is a faint third magnitude star, it may be difficult to identify in most light polluted cities, though in rural locations the star should be easily observable.


Ex Output:
a


Ex Input:
Question: How long had the #11 seed school been competing in the Colonial Athletic Association? Passage:The 2011 NCAA Men's Division I Basketball Tournament was the first time since the tournament expanded to 64 teams in 1985 that two mid-majors met in the Final Four. The Butler University Bulldogs returned for their second consecutive appearance after winning the Southeast Regional in New Orleans as a #8 seed. The Virginia Commonwealth University Rams of the Colonial Athletic Association advanced to their first Final Four appearance after winning the Southwest Regional in San Antonio as a #11 seed. VCU became the first team in history to win five games to reach the Final Four, winning the First Four round in its inaugural year. VCU tied LSU in 1986 and fellow CAA team, George Mason, in 2006 as the highest seed to reach the Final Four (#11). The previous time two mid-majors advanced to the same Final Four was the 1979 NCAA Men's Division I Basketball Tournament, when Indiana State of the Missouri Valley and Penn of the Ivy League qualified. Butler is no longer a mid-major due to its membership in the Big East since 2013. VCU has since joined the Atlantic 10, where it has consistently been among the top teams, even following the departure of coach Shaka Smart for Texas in 2015, and his successor, Will Wade, for LSU in 2017. 


Ex Output:

b