Moreover, the main body portion has {HEAD ~ a depth dimension} substantially less than {TAIL ~ its width dimension} and a length dimension substantially greater than its width dimension 
substantially less than
Moreover , the main body portion has { HEAD ~ a depth dimension } substantially less than { TAIL ~ its width dimension } and a length dimension substantially greater than its width dimension
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH