<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<https://store.kobobooks.com/en-us/book/Handbook-HIV-Social-Work-Principles/f4ixk2mSYE2mbP0Ka-eAew?MixID=f4ixk2mSYE2mbP0Ka-eAew&PageNumber=1>