<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.kilobooks.com/duong-loi-dau-tranh-ngoai-giao-cua-dang-ta-trong-thoi-ky-1945-1946-a-91211>