{HEAD ~ The portion} contains sufficient direction to locate {TAIL ~ any remaining code} for carrying out the recovery process as described below with respect to FIGS 3 and 4 
{ HEAD ~ The portion } contains sufficient direction to locate { TAIL ~ any remaining code } for carrying out the recovery process as described below with respect to FIGS 3 and 4
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH