Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Thomas Edison began serious research into developing a practical incandescent lamp in 1878. Edison filed his first patent application for "Improvement In Electric Lights" on 14 October 1878. After many experiments, first with carbon in the early 1880s and then with platinum and other metals, in the end Edison returned to a carbon filament. The first successful test was on 22 October 1879, and lasted 13.5 hours. Edison continued to improve this design and by 4 November 1879, filed for a US patent for an electric lamp using "a carbon filament or strip coiled and connected ... to platina contact wires." Although the patent described several ways of creating the carbon filament including using "cotton and linen thread, wood splints, papers coiled in various ways," Edison and his team later discovered that a carbonized bamboo filament could last more than 1200 hours. In 1880, the Oregon Railroad and Navigation Company steamer, Columbia, became the first application for Edison's incandescent electric lamps (it was also the first ship to execute use of a dynamo).
How long did Edison's light burn during his first successful test in 1879?
A: 13.5 hours

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Criticism of the War on Terror addresses the issues, morality, efficiency, economics, and other questions surrounding the War on Terror and made against the phrase itself, calling it a misnomer. The notion of a "war" against "terrorism" has proven highly contentious, with critics charging that it has been exploited by participating governments to pursue long-standing policy/military objectives, reduce civil liberties, and infringe upon human rights. It is argued that the term war is not appropriate in this context (as in War on Drugs), since there is no identifiable enemy, and that it is unlikely international terrorism can be brought to an end by military means.
What phrase has been called a misnomer?
A: War on Terror

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
All graphic, format, and private use characters have a unique and immutable name by which they may be identified. This immutability has been guaranteed since Unicode version 2.0 by the Name Stability policy. In cases where the name is seriously defective and misleading, or has a serious typographical error, a formal alias may be defined, and applications are encouraged to use the formal alias in place of the official character name. For example, U+A015 YI SYLLABLE WU has the formal alias yi syllable iteration mark, and U+FE18 PRESENTATION FORM FOR VERTICAL RIGHT WHITE LENTICULAR BRAKCET (sic) has the formal alias presentation form for vertical right white lenticular bracket.
How long has this name immutability been guaranteed?
A: since Unicode version 2.0

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Enrollment at the Lawrence and Edwards campuses was 23,597 students in fall 2014; an additional 3,371 students were enrolled at the KU Medical Center for a total enrollment of 26,968 students across the three campuses. The university overall employed 2,663 faculty members in fall 2012.
How many people attended the University of Kansas at its Edwards and Lawrence locations in the fall semester of 2014?
A:
23,597