<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<https://store.kobobooks.com/ebook/the-life-and-times-of-william-lyon-mackenzie-with-an-account-of-the-canadian-rebellion-of-1837-and-the-subsequent-frontier-disturbances-chiefly-from-unpublished-documents>