<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<https://store.kobobooks.com/en-us/book/How-Succeed-Academics-2nd-edition/pzESyukZr028b2mcfhNfng?MixID=pzESyukZr028b2mcfhNfng&PageNumber=1>