In an embodiment, {HEAD ~ the region} 38 has {TAIL ~ depth} greater than the region 34 
has
In an embodiment , { HEAD ~ the region } 38 has { TAIL ~ depth } greater than the region 34
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH