Problem: Association football:

At a professional level, most matches produce only a few goals. For example, the 2005–06 season of the English Premier League produced an average of 2.48 goals per match. The Laws of the Game do not specify any player positions other than goalkeeper, but a number of specialised roles have evolved. Broadly, these include three main categories: strikers, or forwards, whose main task is to score goals; defenders, who specialise in preventing their opponents from scoring; and midfielders, who dispossess the opposition and keep possession of the ball to pass it to the forwards on their team. Players in these positions are referred to as outfield players, to distinguish them from the goalkeeper. These positions are further subdivided according to the area of the field in which the player spends most time. For example, there are central defenders, and left and right midfielders. The ten outfield players may be arranged in any combination. The number of players in each position determines the style of the team's play; more forwards and fewer defenders creates a more aggressive and offensive-minded game, while the reverse creates a slower, more defensive style of play. While players typically spend most of the game in a specific position, there are few restrictions on player movement, and players can switch positions at any time. The layout of a team's players is known as a formation. Defining the team's formation and tactics is usually the prerogative of the team's manager.

Who's job is to prevent their team from scoring?
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A: unanswerable


Problem: Genome composition is used to describe the make up of contents of a haploid genome, which should include genome size, proportions of non-repetitive DNA and repetitive DNA in details. By comparing the genome compositions between genomes, scientists can better understand the evolutionary history of a given genome.
What is the term that accounts for the constituents of the haploid genome?
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Answer: Genome composition


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Bohr also introduced the quantity , now known as the reduced Planck constant, as the quantum of angular momentum. At first, Bohr thought that this was the angular momentum of each electron in an atom: this proved incorrect and, despite developments by Sommerfeld and others, an accurate description of the electron angular momentum proved beyond the Bohr model. The correct quantization rules for electrons – in which the energy reduces to the Bohr model equation in the case of the hydrogen atom – were given by Heisenberg's matrix mechanics in 1925 and the Schrödinger wave equation in 1926: the reduced Planck constant remains the fundamental quantum of angular momentum. In modern terms, if J is the total angular momentum of a system with rotational invariance, and Jz the angular momentum measured along any given direction, these quantities can only take on the values
What is the extended Planck constant also known as?
A: unanswerable


Context and question: In the 20th century, new types of glass such as laminated glass, reinforced glass and glass bricks have increased the use of glass as a building material and resulted in new applications of glass. Multi-storey buildings are frequently constructed with curtain walls made almost entirely of glass. Similarly, laminated glass has been widely applied to vehicles for windscreens. While glass containers have always been used for storage and are valued for their hygienic properties, glass has been utilized increasingly in industry. Optical glass for spectacles has been used since the late Middle Ages. The production of lenses has become increasingly proficient, aiding astronomers as well as having other application in medicine and science. Glass is also employed as the aperture cover in many solar energy systems.
What type of scientists rely on windscreens for distant observations?
Answer: unanswerable


Question: It is a fully developed legal system, with all the necessary elements: courts, lawyers, judges, a fully articulated legal code principles of legal interpretation, and coercive penalties, though it lacks civilly-binding force in most secular jurisdictions. The academic degrees in canon law are the J.C.B. (Juris Canonici Baccalaureatus, Bachelor of Canon Law, normally taken as a graduate degree), J.C.L. (Juris Canonici Licentiatus, Licentiate of Canon Law) and the J.C.D. (Juris Canonici Doctor, Doctor of Canon Law). Because of its specialized nature, advanced degrees in civil law or theology are normal prerequisites for the study of canon law.
Is there an answer to this question: What is one of the non-academic degrees in Canon law?

Answer: unanswerable


Question: IBM acquired Kenexa (2012) and SPSS (2009) and PwC's consulting business (2002), spinning off companies like printer manufacturer Lexmark (1991), and selling off product lines like its personal computer and x86 server businesses to Lenovo (2005, 2014). In 2014, IBM announced that it would go "fabless" by offloading IBM Micro Electronics semiconductor manufacturing to GlobalFoundries, a leader in advanced technology manufacturing, citing that semiconductor manufacturing is a capital-intensive business which is challenging to operate without scale. This transition had progressed as of early 2015[update].
Is there an answer to this question: What company did Kenexa sell Lexmark to?

Answer:
unanswerable