Problem: Zinc:

Brass, which is an alloy of copper and zinc, has been used since at least the 10th century BC in Judea and by the 7th century BC in Ancient Greece. Zinc metal was not produced on a large scale until the 12th century in India and was unknown to Europe until the end of the 16th century. The mines of Rajasthan have given definite evidence of zinc production going back to the 6th century BC. To date, the oldest evidence of pure zinc comes from Zawar, in Rajasthan, as early as the 9th century AD when a distillation process was employed to make pure zinc. Alchemists burned zinc in air to form what they called "philosopher's wool" or "white snow".

When was zinc introduced to Europe?
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A: end of the 16th century


Problem: On 20 December 2012, Pope Benedict XVI, in an audience with the Cardinal Prefect of the Congregation for the Causes of Saints, declared that the late pontiff had lived a life of heroic virtue, which means that he could be called "Venerable". A miracle attributed to the intercession of Paul VI was approved on 9 May 2014 by Pope Francis. The beatification ceremony for Paul VI was held on 19 October 2014, which means that he can now be called "Blessed". His liturgical feast day is celebrated on the date of his birth, 26 September, rather than the day of his death as is usual.
What was attributed to Paul VI and officially approved on May 9, 2014?
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Answer: A miracle


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In 2008, TCM won a Peabody Award for excellence in broadcasting. In April 2010, Turner Classic Movies held the first TCM Classic Film Festival, an event – now held annually – at the Grauman's Chinese Theater and the Grauman's Egyptian Theater in Hollywood. Hosted by Robert Osborne, the four-day long annual festival celebrates Hollywood and its movies, and features celebrity appearances, special events, and screenings of around 50 classic movies including several newly restored by the Film Foundation, an organization devoted to preserving Hollywood's classic film legacy.
In addition to the Grauman's Chinese Theater, where did the first film legacy take place?
A: unanswerable


Context and question: Northwestern is home to the Center for Interdisciplinary Exploration and Research in Astrophysics, Northwestern Institute for Complex Systems, Nanoscale Science and Engineering Center, Materials Research Center, Institute for Policy Research, International Institute for Nanotechnology, Center for Catalysis and Surface Science, Buffet Center for International and Comparative Studies, the Initiative for Sustainability and Energy at Northwestern and the Argonne/Northwestern Solar Energy Research Center and other centers for interdisciplinary research.
Where is the home of the International Institute for Nanotechnology?
Answer: Northwestern


Question: Sunlight has influenced building design since the beginning of architectural history. Advanced solar architecture and urban planning methods were first employed by the Greeks and Chinese, who oriented their buildings toward the south to provide light and warmth.
Is there an answer to this question: What has influenced the design since the beginning of architectural history?

Answer: Sunlight


Problem: Philadelphia:

Philadelphia's an annualized unemployment rate was 7.8% in 2014, down from 10.0%the previous year. This is higher than the national average of 6.2%. Similarly, the rate of new jobs added to the city's economy lagged behind the national job growth. In 2014, about 8,800 jobs were added to the city's economy. Sectors with the largest number of jobs added were in education and health services, leisure and hospitality, and professional and business services. Declines were seen in the city's manufacturing and government sectors.

What industries accounted for most of the city's job gains?
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A:
education and health services, leisure and hospitality, and professional and business services