PDS4 Information Model Classes	GEMET Thesaurus	Source
http://ontology.pds.nasa.gov/pds/0001_nasa_pds_1/pds/tagged_nondigital_object/pds/product	http://www.eionet.europa.eu/gemet/concept/6660	LOOM
http://ontology.pds.nasa.gov/pds/0001_nasa_pds_1/pds/tndo_context/pds/resource	http://www.eionet.europa.eu/gemet/concept/7168	LOOM
http://ontology.pds.nasa.gov/pds/0001_nasa_pds_1/pds/tndo_supplemental/pds/document	http://www.eionet.europa.eu/gemet/concept/2282	LOOM
http://ontology.pds.nasa.gov/pds/0001_nasa_pds_1/pds/table_delimited/pds/inventory	http://www.eionet.europa.eu/gemet/concept/4466	LOOM
http://ontology.pds.nasa.gov/pds/0001_nasa_pds_1/pds/tagged_digital_child/pds/field	http://www.eionet.europa.eu/gemet/concept/3176	LOOM