<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://amarillas.emol.com/librer\u00C3\u00ADa-antillanca-liliana-soledad-perez-frost/Rancagua,%20Comuna%20VI%20Regi\u00C3\u00B3n>