{TAIL ~ The long standing but heretofore unfulfilled need} for an improved watercraft propulsion system that fulfills the identified needs is now met by {HEAD ~ a new, useful, and nonobvious invention} 
{ TAIL ~ The long standing but heretofore unfulfilled need } for an improved watercraft propulsion system that fulfills the identified needs is now met by { HEAD ~ a new , useful , and nonobvious invention }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD