<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.frmtr.com/lise-bilgi-istekleri/2491695-8-sinif-matematik-performans-gorevi-devirli-ondalik-acilim-ve-irrasyonel-sayilar.html>