The platform is provided with plural buoys which are equally spaced around the platform and connected to {HEAD ~ retractile cables} linking with a descending cable at {TAIL ~ a junction} 
The platform is provided with plural buoys which are equally spaced around the platform and connected to { HEAD ~ retractile cables } linking with a descending cable at { TAIL ~ a junction }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL