{TAIL ~ The second portion} of {HEAD ~ the raised region} is thinner than the first portion of the raised region 
{ TAIL ~ The second portion } of { HEAD ~ the raised region } is thinner than the first portion of the raised region
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH