{HEAD ~ The membrane} includes {TAIL ~ a bellows portion} for increasing the distance by which the membrane can be deflected in response to the given pressure increase 
includes
{ HEAD ~ The membrane } includes { TAIL ~ a bellows portion } for increasing the distance by which the membrane can be deflected in response to the given pressure increase
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH