Problem: Comprehensive school:

Since the 1988 Education Reform Act, parents have a right to choose which school their child should go to or whether to not send them to school at all and to home educate them instead. The concept of "school choice" introduces the idea of competition between state schools, a fundamental change to the original "neighbourhood comprehensive" model, and is partly intended as a means by which schools that are perceived to be inferior are forced either to improve or, if hardly anyone wants to go there, to close down. Government policy is currently promoting 'specialisation' whereby parents choose a secondary school appropriate for their child's interests and skills. Most initiatives focus on parental choice and information, implementing a pseudo-market incentive to encourage better schools. This logic has underpinned the controversial league tables of school performance.

Parental choice has informed what controversial practice?
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A: league tables of school performance


Problem: Public transport is essential in New York City. 54.6% of New Yorkers commuted to work in 2005 using mass transit. This is in contrast to the rest of the United States, where about 90% of commuters drive automobiles to their workplace. According to the US Census Bureau, New York City residents spend an average of 38.4 minutes a day getting to work, the longest commute time in the nation among large cities. New York is the only US city in which a majority (52%) of households do not have a car; only 22% of Manhattanites own a car. Due to their high usage of mass transit, New Yorkers spend less of their household income on transportation than the national average, saving $19 billion annually on transportation compared to other urban Americans.
What percentage of people living in Manhattan own a car?
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Answer: 22


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Some of Chopin's well-known pieces have acquired descriptive titles, such as the Revolutionary Étude (Op. 10, No. 12), and the Minute Waltz (Op. 64, No. 1). However, with the exception of his Funeral March, the composer never named an instrumental work beyond genre and number, leaving all potential extramusical associations to the listener; the names by which many of his pieces are known were invented by others. There is no evidence to suggest that the Revolutionary Étude was written with the failed Polish uprising against Russia in mind; it merely appeared at that time. The Funeral March, the third movement of his Sonata No. 2 (Op. 35), the one case where he did give a title, was written before the rest of the sonata, but no specific event or death is known to have inspired it.
How many instrumental works did Chopin give a descriptive name to?
A: one


Context and question: In the United States, August Vollmer introduced other reforms, including education requirements for police officers. O.W. Wilson, a student of Vollmer, helped reduce corruption and introduce professionalism in Wichita, Kansas, and later in the Chicago Police Department. Strategies employed by O.W. Wilson included rotating officers from community to community to reduce their vulnerability to corruption, establishing of a non-partisan police board to help govern the police force, a strict merit system for promotions within the department, and an aggressive recruiting drive with higher police salaries to attract professionally qualified officers. During the professionalism era of policing, law enforcement agencies concentrated on dealing with felonies and other serious crime, rather than broader focus on crime prevention.
Who was O.W. Wilson a student of?
Answer: August Vollmer


Question: The Sun remained loyal to Thatcher right up to her resignation in November 1990, despite the party's fall in popularity over the previous year following the introduction of the Poll tax (officially known as the Community Charge). This change to the way local government is funded was vociferously supported by the newspaper, despite widespread opposition, (some from Conservative MPs), which is seen as having contributed to Thatcher's own downfall. The tax was quickly repealed by her successor John Major, whom The Sun initially supported enthusiastically, believing he was a radical Thatcherite – despite the economy having entered recession at this time.
Is there an answer to this question: When did Margaret Thatcher leave office?

Answer: November 1990


Question: At the Battle of Mars-la-Tours, the Prussian 12th Cavalry Brigade, commanded by General Adalbert von Bredow, conducted a charge against a French artillery battery. The attack was a costly success and came to be known as "von Bredow's Death Ride", which was held to prove that cavalry charges could still prevail on the battlefield. Use of traditional cavalry on the battlefields of 1914 proved to be disastrous, due to accurate, long-range rifle fire, machine-guns and artillery. Von Bredow's attack had succeeded only because of an unusually effective artillery bombardment just before the charge, along with favorable terrain that masked his approach.
Is there an answer to this question: Who commanded the Prussian 12 Cavalry Brigade?

Answer:
General Adalbert von Bredow