{TAIL ~ The blade portion} 12b is shaped like {HEAD ~ a boot}, exposing its rear side 
{ TAIL ~ The blade portion } 12b is shaped like { HEAD ~ a boot } , exposing its rear side
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH