Thus, {HEAD ~ more information} regarding {TAIL ~ the tip sample interaction} can be retrieved from the torsional vibration spectrum 
regarding
Thus , { HEAD ~ more information } regarding { TAIL ~ the tip sample interaction } can be retrieved from the torsional vibration spectrum
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH