The inner fibers {TAIL ~ each} provides {HEAD ~ an inner connector} to couple with one of OSAs 
The inner fibers { TAIL ~ each } provides { HEAD ~ an inner connector } to couple with one of OSAs
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH