{HEAD ~ a rear cover} being mounted on {TAIL ~ the mount surface} of the base and having an outer surface and a handgrip being formed on the outer surface 
mounted on
{ HEAD ~ a rear cover } being mounted on { TAIL ~ the mount surface } of the base and having an outer surface and a handgrip being formed on the outer surface
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH