Here, {HEAD ~ the positioning} of the operator control relative to {TAIL ~ the sensors} is immaterial because the actuation of the sensors is effected, not directly by the finger, but by the magnet 
relative to
Here , { HEAD ~ the positioning } of the operator control relative to { TAIL ~ the sensors } is immaterial because the actuation of the sensors is effected , not directly by the finger , but by the magnet
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH