Problem: Incandescent light bulb:

A variation of the incandescent lamp did not use a hot wire filament, but instead used an arc struck on a spherical bead electrode to produce heat. The electrode then became incandescent, with the arc contributing little to the light produced. Such lamps were used for projection or illumination for scientific instruments such as microscopes. These arc lamps ran on relatively low voltages and incorporated tungsten filaments to start ionization within the envelope. They provided the intense concentrated light of an arc lamp but were easier to operate. Developed around 1915, these lamps were displaced by mercury and xenon arc lamps.

What type of lamp provided a low concentrated light that was harder to operate?
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A: unanswerable


Problem: What's New was announced at Gamescom 2009 and was released on September 1, 2009, with PlayStation 3 system software 3.0. The feature was to replace the existing [Information Board], which displayed news from the PlayStation website associated with the user's region. The concept was developed further into a major PlayStation Network feature, which interacts with the [Status Indicator] to display a ticker of all content, excluding recently played content (currently in North America and Japan only).
What's geographical area does What's New tailor information to for each user?
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Answer: region


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In 1930 Thuringia was one of the free states where the Nazis gained real political power. Wilhelm Frick was appointed Minister of the Interior for the state of Thuringia after the Nazi Party won six delegates to the Thuringia Diet. In this position he removed from the Thuringia police force anyone he suspected of being a republican and replaced them with men who were favourable towards the Nazi Party. He also ensured that whenever an important position came up within Thuringia, he used his power to ensure that a Nazi was given that post.
Who did Frick remove from the police force?
A: anyone he suspected of being a republican


Context and question: In the United States, political commentators often refer to the "red states", which traditionally vote for Republican candidates in presidential elections, and "blue states", which vote for the Democratic candidate. This convention is relatively recent: before the 2000 presidential election, media outlets assigned red and blue to both parties, sometimes alternating the allocation for each election. Fixed usage was established during the 39-day recount following the 2000 election, when the media began to discuss the contest in terms of "red states" versus "blue states".
In the United States states that vote for Democratic presidential candidates are known as what?
Answer: blue states


Question: University education includes teaching, research, and social services activities, and it includes both the undergraduate level (sometimes referred to as tertiary education) and the graduate (or postgraduate) level (sometimes referred to as graduate school). Universities are generally composed of several colleges. In the United States, universities can be private and independent like Yale University; public and state-governed like the Pennsylvania State System of Higher Education; or independent but state-funded like the University of Virginia. A number of career specific courses are now available to students through the Internet.
Is there an answer to this question: What type of University would Yale fall under?

Answer: independent


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The lower (Triassic) boundary is set by the Permian–Triassic extinction event, during which approximately 90% to 96% of marine species and 70% of terrestrial vertebrates became extinct. It is also known as the "Great Dying" because it is considered the largest mass extinction in the Earth's history. The upper (Cretaceous) boundary is set at the Cretaceous–Tertiary (KT) extinction event (now more accurately called the Cretaceous–Paleogene (or K–Pg) extinction event), which may have been caused by the impactor that created Chicxulub Crater on the Yucatán Peninsula. Towards the Late Cretaceous large volcanic eruptions are also believed to have contributed to the Cretaceous–Paleogene extinction event. Approximately 50% of all genera became extinct, including all of the non-avian dinosaurs.
How many terrestrial species were created during the Permian–Triassic era?
A:
unanswerable