<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.foroatletismo.com/foro/compra-venta/40794-vendo-leikr-un-reloj-gps-con-pantalla-color-y-mapas-navegables.html>