<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.frikipandi.com/public/post/prepara-tu-sitio-web-para-el-lanzamiento-de-accelerated-mobile-pages-amp-en-la-busqueda-de-google/>