<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.chotot.com/quan-hoan-kiem/mua-ban-nha-dat/nha-mat-pho-dinh-le-21m-mat-tien-3m-28414016.htm>