LinkML Common Metadata Elements and Terms	RDL	Source
http://rds.posccaesar.org/2008/02/OWL/ISO-15926-2_2003#Event	https://w3id.org/linkml-common/Event	LOOM
http://rds.posccaesar.org/2008/02/OWL/ISO-15926-2_2003#Relationship	https://w3id.org/linkml-common/Relationship	LOOM
http://rds.posccaesar.org/2008/02/OWL/ISO-15926-2_2003#Role	https://w3id.org/linkml-common/Role	LOOM