For each pair of {HEAD ~ entries} in {TAIL ~ the section} of memory, a differentiating bit position, reference value, and pointer are determined and stored to differentiate the entries 
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For each pair of { HEAD ~ entries } in { TAIL ~ the section } of memory , a differentiating bit position , reference value , and pointer are determined and stored to differentiate the entries
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL 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