{HEAD ~ A system} for determining {TAIL ~ a flight path} for an aircraft between an initial point and a destination point, comprising: 
for determining
{ HEAD ~ A system } for determining { TAIL ~ a flight path } for an aircraft between an initial point and a destination point , comprising :
HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH