<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<https://store.kobobooks.com/en-us/ebook/NOLS-Cookery-Field-Edition?bookId=d0bbc7b2-5abc-427a-a13a-d95c6c517d05>