The rotor has {HEAD ~ an array} of {TAIL ~ spaced teeth} which are selectively magnetized to become the poles 
of
The rotor has { HEAD ~ an array } of { TAIL ~ spaced teeth } which are selectively magnetized to become the poles
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH