{HEAD ~ The federated folder} and its associated storage structure have {TAIL ~ the capability} to save its instances persistently 
have
{ HEAD ~ The federated folder } and its associated storage structure have { TAIL ~ the capability } to save its instances persistently
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH