Sequence Types and Features Ontology	Hierarchical Event Descriptors	Source
http://purl.org/hed/releases/2024-06-10/hed/HED_0012144	http://purl.obolibrary.org/obo/SO_0000150	LOOM
http://purl.org/hed/releases/2024-06-10/hed/HED_0012544	http://purl.obolibrary.org/obo/SO_0000309	LOOM
http://purl.org/hed/releases/2024-06-10/hed/HED_0012617	http://purl.obolibrary.org/obo/SO_0001030	LOOM