Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
As of 2014, the wind industry in the USA is able to produce more power at lower cost by using taller wind turbines with longer blades, capturing the faster winds at higher elevations. This has opened up new opportunities and in Indiana, Michigan, and Ohio, the price of power from wind turbines built 300 feet to 400 feet above the ground can now compete with conventional fossil fuels like coal. Prices have fallen to about 4 cents per kilowatt-hour in some cases and utilities have been increasing the amount of wind energy in their portfolio, saying it is their cheapest option.
How is the wind industry in the UK able to produce more power at lower cost?
A: unanswerable

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The record transfer fee for a Premier League player has risen steadily over the lifetime of the competition. Prior to the start of the first Premier League season Alan Shearer became the first British player to command a transfer fee of more than 3 million. The record rose steadily in the Premier League's first few seasons, until Alan Shearer made a record breaking 15 million move to Newcastle United in 1996. The three highest transfer in the sport's history had a Premier League club on the selling end, with Tottenham Hotspur selling Gareth Bale to Real Madrid for 85 million in 2013, Manchester United's sale of Cristiano Ronaldo to Real Madrid for 80 million in 2009, and Liverpool selling Luis Suarez to Barcelona for 75 million in 2014.
For how much was the move between Alan Shearer and Manchester United worth in 1996?
A: unanswerable

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Raleigh-Durham International Airport, the region's primary airport and the second-largest in North Carolina, located northwest of downtown Raleigh via Interstate-40 between Raleigh and Durham, serves the city and greater Research Triangle metropolitan region, as well as much of eastern North Carolina. The airport offers service to more than 35 domestic and international destinations and serves approximately 10 million passengers a year. The airport also offers facilities for cargo and general aviation. The airport authority tripled the size of its Terminal 2 (formerly Terminal C) in January 2011.
What is the area's primary airport?
A: Raleigh-Durham International Airport,

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Effective verbal or spoken communication is dependent on a number of factors and cannot be fully isolated from other important interpersonal skills such as non-verbal communication, listening skills and clarification. Human language can be defined as a system of symbols (sometimes known as lexemes) and the grammars (rules) by which the symbols are manipulated. The word "language" also refers to common properties of languages. Language learning normally occurs most intensively during human childhood. Most of the thousands of human languages use patterns of sound or gesture for symbols which enable communication with others around them. Languages tend to share certain properties, although there are exceptions. There is no defined line between a language and a dialect. Constructed languages such as Esperanto, programming languages, and various mathematical formalism is not necessarily restricted to the properties shared by human languages. Communication is two-way process not merely one-way.
When does language learning not occur most intensively?
A:
unanswerable