{HEAD ~ An object} of {TAIL ~ the invention} is to present a flexible data transfer method, and a corresponding system and computer program product 
of
{ HEAD ~ An object } of { TAIL ~ the invention } is to present a flexible data transfer method , and a corresponding system and computer program product
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH