Federated folders can contain {HEAD ~ objects} or members that are documents and {TAIL ~ folders} stored in other heterogeneous datastores 
are
Federated folders can contain { HEAD ~ objects } or members that are documents and { TAIL ~ folders } stored in other heterogeneous datastores
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH