{HEAD ~ A plurality} of {TAIL ~ cylinders} is disposed about the output shaft and are each generally parallel to the longitudinal axis 
{ HEAD ~ A plurality } of { TAIL ~ cylinders } is disposed about the output shaft and are each generally parallel to the longitudinal axis
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH