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