Therefore, advantageously, issuance of a terminal authorization certificate can be requested after confirming {HEAD ~ a terminal authorization certificate} issuing {TAIL ~ terminal} 
Therefore , advantageously , issuance of a terminal authorization certificate can be requested after confirming { HEAD ~ a terminal authorization certificate } issuing { TAIL ~ terminal }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL