{HEAD ~ Such a request}, for example, may originate from {TAIL ~ a processor} connected to the FTL 
originate from
{ HEAD ~ Such a request } , for example , may originate from { TAIL ~ a processor } connected to the FTL
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH