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