The main conduit portion includes {HEAD ~ a long pipeline} formed of {TAIL ~ steel pipes}, which extends along the seafloor to near the buoy station, and in a J curve up to the buoy 
formed of
The main conduit portion includes { HEAD ~ a long pipeline } formed of { TAIL ~ steel pipes } , which extends along the seafloor to near the buoy station , and in a J curve up to the buoy
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH