<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<https://store.kobobooks.com/en-us/category/navigation?categoryname=Navigation&categoryid=0UB8xWqZzUexi4Rc7yv-3w&page=2&s=numpurchases&w=false>