<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<https://store.kobobooks.com/nl-us/ebook/Being-George-Washington-The-Indispensable?bookId=f4f657b9-5380-48cb-9749-7119b7cd2104>