In {TAIL ~ an alternate embodiment}, {HEAD ~ the pitch} may be six inches, with a depth of one inch 
In
In { TAIL ~ an alternate embodiment } , { HEAD ~ the pitch } may be six inches , with a depth of one inch
REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH