#water_main__watermain  main (a pipe or conduit) for conveying water
  supertype:  #main  a principal pipe in a system that distributes water or gas or electricity or that collects sewage
  part of:  #water_supply__watersupply__water_system__watersystem__water  facility that provides a source of water; "the town debated the purification of the water supply"; "first you have to cut off the water"
     part of:  #infrastructure__base  the stock of basic facilities and capital equipment needed for the functioning of a country or area; "the industrial base of Japan"

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