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: Why did the Nok culture die off about 200 AD on the Jos Plateau? Passage:The Nok culture thrived from approximately 1,500 BC to about 200 AD on the Jos Plateau in north and central Nigeria and produced life-sized terracotta figures that include human heads, human figures, and animals. Iron smelting furnaces at Taruga, a Nok site, date from around 600 BC. The Nok culture is thought to have begun smelting iron by 600-500 BC and possibly some centuries earlier. Kainji Dam excavations revealed iron-working by the 2nd century BC. Evidence of iron smelting has also been excavated at sites in the Nsukka region of southeast Nigeria in what is now Igboland: dating to 2,000 BC at the site of Lejja (Uzomaka 2009) and to 750 BC and at the site of Opi (Holl 2009). The transition from Neolithic times to the Iron Age apparently was achieved indigenously without intermediate bronze production. Others have suggested that the technology moved west from the Nile Valley, although the Iron Age in the Niger River valley and the forest region appears to predate the introduction of metallurgy in the upper savanna by more than 800 years. The earliest iron technology in West Africa has also been found to be contemporary with or predate that of the Nile valley and North Africa, and some archaeologists believe that iron metallurgy was likely developed independently in sub-Saharan West Africa.

[A]: b


[Q]: Question: Which of the writers of the single "Little Bit of Everything" was older? Passage:The album's lead single "Little Bit of Everything", written by Brad and Brett Warren (both of The Warren Brothers) along with Kevin Rudolf, was released on 14 May 2013. This song reached number one on the US Billboard Country Airplay chart in September 2013, as did "We Were Us", which was released as the album's second international single. in September 2013. "Shame" was released as the second single in Australia and New Zealand only in August 2013. The third international single, "Cop Car" was released in January 2014. The fourth international single, "Somewhere in My Car", was released on 23 June 2014. That song also reached number one on the Country Airplay chart late that year. The fifth international single, "Raise 'Em Up" is duet with Eric Church. it was released on 26 January 2015, and became the fourth (of the five North American releases) to top the Country Airplay chart in May 2015.

[A]: a


[Q]: Question: How many years did the emperor who designated Amaseia part of the Cappadocia province serve for? Passage:Amaseia was captured by the Roman Lucullus in 70 BC from Armenia and was quickly made a free city and administrative center of his new province of Bithynia and Pontus by Pompey. By this time, Amaseia was a thriving city, the home of thinkers, writers and poets, and one of them, Strabo, left a full description of Amaseia as it was between 60 BC and 19 AD. Around 2 or 3 BC, it was incorporated into the Roman province of Galatia, in the district of Pontus Galaticus. Around the year 112, the emperor Trajan designated it a part of the province of Cappadocia. Later in the 2nd century it gained the titles 'metropolis' and 'first city'. After the division of the Roman Empire by emperor Diocletian the city became part of the East Roman Empire (the Byzantine Empire). At this time it had a predominantly Greek-speaking population.

[A]:
b