{HEAD ~ The second SE} verifies {TAIL ~ the users identity}, and upon verification, generates data authenticating the transaction 
verifies
{ HEAD ~ The second SE } verifies { TAIL ~ the users identity } , and upon verification , generates data authenticating the transaction
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH