{HEAD ~ The bracket} is in turn affixed to {TAIL ~ the ends} of two lower slide bars and one upper slide bar arranged in a triangular configuration 
is affixed to
{ HEAD ~ The bracket } is in turn affixed to { TAIL ~ the ends } of two lower slide bars and one upper slide bar arranged in a triangular configuration
HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH