<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://amarillas.emol.com/amasander\u00C3\u00ADa-y-f\u00C3\u00A1brica-de-empanadas-baeza-alejandro-segundo-baeza-gonzalez>