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It might possible for the #hasEvent to be used as both the object of an rdf:type predicate and the predicate pointing to an objects actual event. Otherwise a fedora ontology predicate could be created for the object of the rdf type.
I think in the PREMIS ontology the premis:Object is the container of premis:Events, and its relationship to the owl:Thing it describes is indicated by http://id.loc.gov/ontologies/premis.html#hasRelatedObject - Benjamin Armintor
2) The PREMIS vocabulary can also be used within the event child objects by creating he child nodes and using the #hasEvent predicate to point to them. Inside the event nodes PREMIS predicates could be added, at a minimum:
http://id.loc.gov/ontologies/premis.html#hasEventDateTime
http://id.loc.gov/ontologies/premis.html#hasAgent
http://id.loc.gov/ontologies/premis.html#hasEventType
http://id.loc.gov/ontologies/premis.html#hasEventOutcomeInformation
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