CHEMROF	Ontology for Biobanking	Source
http://purl.obolibrary.org/obo/CHEBI_33250	https://w3id.org/chemrof/Atom	LOOM
http://purl.obolibrary.org/obo/PR_000000001	https://w3id.org/chemrof/Protein	LOOM
http://purl.obolibrary.org/obo/CHEBI_16670	https://w3id.org/chemrof/Peptide	LOOM
http://purl.obolibrary.org/obo/CHEBI_33839	https://w3id.org/chemrof/Macromolecule	LOOM