<http://schema.org/keywords>
"Fiction, Action & Adventure, Legends, Myths & Fables, Media Tie-In, Dragons, TV Tie-In, Vikings, Scandinavian"^^<http://www.w3.org/2001/XMLSchema#string>
<http://books.simonandschuster.com/Guide-to-the-Dragons-Volume-3/Cordelia-Evans/How-to-Train-Your-Dragon-TV/9781481425698>