{HEAD ~ A fluid powered electrical power generating system} comprising a footwear sole with {TAIL ~ a heel} and a toe, the sole comprising: 
{ HEAD ~ A fluid powered electrical power generating system } comprising a footwear sole with { TAIL ~ a heel } and a toe , the sole comprising :
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH