{HEAD ~ The present invention} can be used for many places provided with {TAIL ~ an overhead traveling cane} 
{ HEAD ~ The present invention } can be used for many places provided with { TAIL ~ an overhead traveling cane }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL