In FIG 4C, the SRRs #3 and {HEAD ~ #}5 in the opened session #2 are {TAIL ~ opened SRRs} and the SRR #4 is a closed SRR 
are
In FIG 4C , the SRRs # 3 and { HEAD ~ # } 5 in the opened session # 2 are { TAIL ~ opened SRRs } and the SRR # 4 is a closed SRR
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH