<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<https://store.kobobooks.com/en-us/book/Flash-Builder-4-Flex-Bible/aevwcRzrI0afMFUI-YCV5Q?MixID=aevwcRzrI0afMFUI-YCV5Q&PageNumber=1>