| http://www.w3.org/ns/prov#value | - This major shift will be driven by the faster-than-expected development of hydrocarbon resources locked in shale and other tight rock that have just started to be unlocked by a new combination of technologies called hydraulic fracturing. ???Benoit Faucon, The Wall Street Journal, 12 November 2012 (http://online.wsj.com/article/SB10001424127887323894704578114492856065064.html)
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