The identification data input unit inputs {HEAD ~ the identification data} stored in {TAIL ~ the log data storage unit} 
stored in
The identification data input unit inputs { HEAD ~ the identification data } stored in { TAIL ~ the log data storage unit }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL