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