<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<http://diemthi.24h.com.vn/diem-thi-tot-nghiep-thpt/diem-thi-tot-nghiep-so-gddt-ha-tinh-30-nam-2014-dttn30.html>