<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<https://store.kobobooks.com/en-us/ebook/Behind-Exclusive-Brethren-New-edition?bookId=512ea4b2-5245-45f8-88a8-da9310d975ef>