A survey system and method for determining the best source of {HEAD ~ position data} for {TAIL ~ a particular application} 
for
A survey system and method for determining the best source of { HEAD ~ position data } for { TAIL ~ a particular application }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL