{HEAD ~ The communications channel} 1 wherein {TAIL ~ said communications channel} is implemented in a data storage system 
wherein
{ HEAD ~ The communications channel } 1 wherein { TAIL ~ said communications channel } is implemented in a data storage system
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH