The transmission period reading part reads the transmission period per {HEAD ~ unit cost} that corresponds to {TAIL ~ the matching area code} 
corresponds to
The transmission period reading part reads the transmission period per { HEAD ~ unit cost } that corresponds to { TAIL ~ the matching area code }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL