<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://dotnet.edu.vn/TinTucND/Wifi-thanh-pho-Da-Nang-tang-toc-do-gap-5-lan-ke-tu-ngay-1122014-452.aspx>