{TAIL ~ The computer program product} 18, wherein the persistent federated folder contains {HEAD ~ members} from an entity of the persistent federated folder 
{ TAIL ~ The computer program product } 18 , wherein the persistent federated folder contains { HEAD ~ members } from an entity of the persistent federated folder
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH