<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.sintagesmamas.com/%CE%BA%CE%BF%CF%85%CE%BB%CE%BF%CF%85%CF%81%CE%AC%CE%BA%CE%B9%CE%B1-%CE%BC%CE%B5-%CF%80%CE%BF%CF%81%CF%84%CE%BF%CE%BA%CE%AC%CE%BB%CE%B9-%CE%BD%CE%B7%CF%83%CF%84%CE%AF%CF%83%CE%B9%CE%BC%CE%B1>