In another embodiment, {HEAD ~ the two dimensional electric motor} has {TAIL ~ an array} of permanent magnets and two sets of two coils 
has
In another embodiment , { HEAD ~ the two dimensional electric motor } has { TAIL ~ an array } of permanent magnets and two sets of two coils
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH