Elucidation: An entity that continues or persists through time, including (1) independent objects, (2) qualities and dispositions, and (3) the spatial regions these entities occupy at any given time. Continuant and occurrent are the two highest categories (universals) in BFO. Source: Robert Arp, Barry Smith, and Andrew D. Spear: Building Ontologies with Basic Formal Ontology. The MIT Press Cambridge, Massachusetts London, England. ©2015 Massachusetts Institute of Technology. ISBN 978-0-262-52781-1, Glossary. https://www.ebi.ac.uk/ols4/ontologies/bfo/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FBFO_0000002