{HEAD ~ The invention} also presents a novel optical recording/reproducing apparatus and {TAIL ~ optical recording/reproducing method} 
presents
{ HEAD ~ The invention } also presents a novel optical recording / reproducing apparatus and { TAIL ~ optical recording / reproducing method }
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL