.. index:: single: BFO_0000003; occurrent single: occurrent; BFO_0000003 BFO_0000003 - occurrent ==================================================================================== .. topic:: Label occurrent .. topic:: Sub class of :doc:`doc-BFO_0000001` .. topic:: Definition An entity which occurs in time .. topic:: Imported from http://purl.obolibrary.org/obo/bfo/2020/bfo.owl