An initial estimation of the location and {TAIL ~ orientation} of {HEAD ~ each magnet results} in the generation of predicted magnetic field values 
An initial estimation of the location and { TAIL ~ orientation } of { HEAD ~ each magnet results } in the generation of predicted magnetic field values
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH