<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.chotot.com/quan-hoang-mai/mua-ban-tivi-loa-amply-may-nghe-nhac/loa-ma-thuat-best-core-318-28335029.htm>