<http://schema.org/keywords>
"Books, Consumer Electronics, Legal Issues, non-terminal, nonterminal, Policy, Politics, Technology, story"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.bloomberg.com/bw/articles/2013-06-14/at-apple-e-book-trial-pen-and-paper-rule-the-courtroom>