In addition, {TAIL ~ the link} forms a loop with both ends thereof being connected to {HEAD ~ the surface installation}  
In addition , { TAIL ~ the link } forms a loop with both ends thereof being connected to { HEAD ~ the surface installation }
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH