wherein {HEAD ~ the first contact surface} is on {TAIL ~ a first elastic region} of the first lining part or the second contact surface is on a second elastic region of the second lining part 
is on
wherein { HEAD ~ the first contact surface } is on { TAIL ~ a first elastic region } of the first lining part or the second contact surface is on a second elastic region of the second lining part
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL 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 OTH OTH OTH