CUBRC Inc., see full license.
BSD 3-Clause: https://github.com/CommonCoreOntology/CommonCoreOntologies/blob/master/LICENSE
An import of all the Common Core mid-level ontologies into a single file so that content is easy to view. The All Core Ontology is not an ontology in the sense it contains no unique content. As such it should not be added to, but can be extended from.
All Core Ontology
Version 2.1