<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<https://store.kobobooks.com/en-us/book/Basic-Search/E_wEtivrN02pbnI3Utm1VQ?MixID=E_wEtivrN02pbnI3Utm1VQ&PageNumber=1>