<http://schema.org/keywords>
"Social Situations, Fiction, Picture Book, Action & Adventure, Mystery, Suspense, Middle Grade, 1st Experiences, Spies"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.simonandschuster.com/books/Lulus-Mysterious-Mission/Judith-Viorst/9781442497467>