<https://catalogue.esquirrel.at/#website>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/WebSite>
<https://catalogue.esquirrel.at/?query_type_school_types=or&filter_subjects=economics-2,german-2,mathematics-2&query_type_subjects=or&filter_school_types=at-brp-2,de-gymnasium-2>