<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.msxlabs.org/forum/soru-cevap/240914-sesin-yayilmasi-icin-neler-gereklidir-yanki-ve-eko-nedir-3.html>