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