<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<https://store.kobobooks.com/en-us/book/Explicit-Direct-Instruction-EDI/nRSt94N_jEK1qWlK7KYVvw?MixID=nRSt94N_jEK1qWlK7KYVvw&PageNumber=1>