In {TAIL ~ the prior art}, {HEAD ~ an end} of such pipeline might be terminated at the base 44 where the buoy 40 was anchored, and a vertical pipe would extend up from the base to the buoy 40 
In
In { TAIL ~ the prior art } , { HEAD ~ an end } of such pipeline might be terminated at the base 44 where the buoy 40 was anchored , and a vertical pipe would extend up from the base to the buoy 40
REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH