{HEAD ~ The particular sequence} of such executable instructions or {TAIL ~ associated data structures} represents examples of corresponding acts for implementing the functions described in such steps 
{ HEAD ~ The particular sequence } of such executable instructions or { TAIL ~ associated data structures } represents examples of corresponding acts for implementing the functions described in such steps
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH