#pipeline__line  a pipe used to transport liquids or gases; "a pipeline runs from the wells to the seaport"
  supertype:  pipe__pipage__piping  a long tube made of metal or plastic that is used to carry water or oil or gas etc.
  subtype:  Alaskan_pipeline__trans-Alaska_ppipeline  an oil pipeline that runs 800 miles from wells at Prudhoe Bay to the port of Valdez
  subtype:  gas_line__gasline  a pipeline used to transport natural gas; "the workmen broke through the gas line"
  subtype:  oil_pipeline__oilpipeline  a pipeline used to transport oil

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