Additionally, although {HEAD ~ a plurality} of SRRs can exist in {TAIL ~ the opened session} , all the SRRs of that session do not have to be opened SRRs and it is sufficient that at least one opened SRR exists in the opened session 
Additionally , although { HEAD ~ a plurality } of SRRs can exist in { TAIL ~ the opened session } , all the SRRs of that session do not have to be opened SRRs and it is sufficient that at least one opened SRR exists in the opened session
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH