<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.sps-forum.de/codesys-und-iec61131/53873-twincat-3-fehler-bei-der-installation-und-bluescreen-bei-start-neustart-und-konfig.html>