Numerous variations on {HEAD ~ the method} and apparatus of {TAIL ~ the present invention} are possible and likely 
of
Numerous variations on { HEAD ~ the method } and apparatus of { TAIL ~ the present invention } are possible and likely
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH