{HEAD ~ The device} may use {TAIL ~ an iterative process} to determine the actual location and orientation of each magnet 
use
{ HEAD ~ The device } may use { TAIL ~ an iterative process } to determine the actual location and orientation of each magnet
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH