<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<https://store.kobobooks.com/en-us/category/allied-health-services?categoryname=foo&categoryid=oriFvvrOs0CsxIac9qbTpA&page=1&s=numpurchases&w=false>