Various embodiments are described of a liquid powered dynamometric generator built into {HEAD ~ a shoe}, which has {TAIL ~ at least two layers} as part of its sole 
has
Various embodiments are described of a liquid powered dynamometric generator built into { HEAD ~ a shoe } , which has { TAIL ~ at least two layers } as part of its sole
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH