<http://schema.org/query-input>
"required name=search_string"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.centralpoint.be/nl/oplaadbare-batterijen-accus/2-power/apple-macbook-air-13-mid-2011-2012-a1496-art-cbp3496a-num-5706141/>