<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<https://store.kobobooks.com/en-us/ebook/The-Challenge-Rethinking-History-Education?bookId=c73ca74b-0c7f-4afb-aa6b-a6396b444a98>