In an exemplary embodiment, {HEAD ~ the sensor} includes {TAIL ~ an electrically conductive tube} having two ends 
includes
In an exemplary embodiment , { HEAD ~ the sensor } includes { TAIL ~ an electrically conductive tube } having two ends
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH