{HEAD ~ The invention} relates to a device and {TAIL ~ a method} for performing a cache process on data 
relates to
{ HEAD ~ The invention } relates to a device and { TAIL ~ a method } for performing a cache process on data
HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH