Problem: Sino-Tibetan relations during the Ming dynasty:

According to Tibetologist John Powers, Tibetan sources counter this narrative of titles granted by the Chinese to Tibetans with various titles which the Tibetans gave to the Chinese emperors and their officials. Tribute missions from Tibetan monasteries to the Chinese court brought back not only titles, but large, commercially valuable gifts which could subsequently be sold. The Ming emperors sent invitations to ruling lamas, but the lamas sent subordinates rather than coming themselves, and no Tibetan ruler ever explicitly accepted the role of being a vassal of the Ming.

What was the name of the Tibetologist?
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A: John Powers


Problem: Historically, pubs have been socially and culturally distinct from cafés, bars and German beer halls. Most pubs offer a range of beers, wines, spirits, and soft drinks and snacks. Traditionally the windows of town pubs were of smoked or frosted glass to obscure the clientele from the street but from the 1990s onwards, there has been a move towards clear glass, in keeping with brighter interiors.
Aside from beverages, what types of food do pubs typically offer?
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Answer: snacks


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In 1875, blacks made up 57% of the city's population, and 73% of Charleston County. With leadership by members of the antebellum free black community, historian Melinda Meeks Hennessy described the community as "unique" in being able to defend themselves without provoking "massive white retaliation", as occurred in numerous other areas during Reconstruction. In the 1876 election cycle, two major riots between black Republicans and white Democrats occurred in the city, in September and the day after the election in November, as well as a violent incident in Cainhoy at an October joint discussion meeting.
The second riot of 1876 happened when?
A: the day after the election in November


Context and question: Local anesthetic injections into the nerves or sensitive areas of the stump may relieve pain for days, weeks, or sometimes permanently, despite the drug wearing off in a matter of hours; and small injections of hypertonic saline into the soft tissue between vertebrae produces local pain that radiates into the phantom limb for ten minutes or so and may be followed by hours, weeks or even longer of partial or total relief from phantom pain. Vigorous vibration or electrical stimulation of the stump, or current from electrodes surgically implanted onto the spinal cord, all produce relief in some patients.
What does electrical vibration provide?
Answer: unanswerable


Question: After Kerry's third qualifying wound, he was entitled per Navy regulations to reassignment away from combat duties. Kerry's preferred choice for reassignment was as a military aide in Boston, New York or Washington, D.C. On April 11, 1969, he reported to the Brooklyn-based Atlantic Military Sea Transportation Service, where he would remain on active duty for the following year as a personal aide to an officer, Rear Admiral Walter Schlech. On January 1, 1970 Kerry was temporarily promoted to full Lieutenant. Kerry had agreed to an extension of his active duty obligation from December 1969 to August 1970 in order to perform Swift Boat duty. John Kerry was on active duty in the United States Navy from August 1966 until January 1970. He continued to serve in the Naval Reserve until February 1978.
Is there an answer to this question: Who was Kerry a personal aide for?

Answer: Rear Admiral Walter Schlech


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
New Delhi is the largest commercial city in northern India. It has an estimated net State Domestic Product (FY 2010) of ₹1595 billion (US$23 billion) in nominal terms and ~₹6800 billion (US$100 billion) in PPP terms. As of 2013, the per capita income of Delhi was Rs. 230000, second highest in India after Goa. GSDP in Delhi at the current prices for 2012-13 is estimated at Rs 3.88 trillion (short scale) against Rs 3.11 trillion (short scale) in 2011-12.
What was the 2011-12 GSDP estimate for Delhi?
A:
Rs 3.11 trillion