logger.error("Only SAREF ontologies with specific versions shall be imported. Their URIs conform to the regular expression `^https://saref.etsi.org/(core|saref4[a-z]{4})/v[1-9][0-9]*\\\\.[1-9][0-9]*\\\\.[1-9][0-9]*/$`");
// logger.error("Only SAREF ontologies with specific versions shall be imported. Their URIs conform to the regular expression `^https://saref.etsi.org/(core|saref4[a-z]{4})/v[1-9][0-9]*\\\\.[1-9][0-9]*\\\\.[1-9][0-9]*/$`");