CHEMROF	Genotype Ontology	Source
https://w3id.org/chemrof/SequenceInterval	http://purl.obolibrary.org/obo/GENO_0000965	LOOM
https://w3id.org/chemrof/ElementFamilyEnum#Transition	http://purl.obolibrary.org/obo/SO_1000009	LOOM