<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.foroatletismo.com/foro/lesiones/29405-sabeis-de-algun-buen-sitio-para-que-me-hagan-un-test-de-la-pisada.html>