{HEAD ~ The material stiffness} of {TAIL ~ the buffer element} is less than that of the supporting base 
of
{ HEAD ~ The material stiffness } of { TAIL ~ the buffer element } is less than that of the supporting base
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH