Río Cachiyacu (Q23885798)

• matcher place: Pastaza (relation 113869)
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• Overpass query: show query – Overpass Turbo

  [timeout:300][out:json];
  (
      node(around:1000,-1.31667,-76.50000)[waterway][~"^(addr:housenumber|.*name.*)$"~".",i];
      way(around:1000,-1.31667,-76.50000)[waterway][~"^(addr:housenumber|.*name.*)$"~".",i];
      rel(around:1000,-1.31667,-76.50000)[waterway][~"^(addr:housenumber|.*name.*)$"~".",i];
      node(around:1000,-1.31667,-76.50000)[natural=water][name];
      way(around:1000,-1.31667,-76.50000)[natural=water][name];
      rel(around:1000,-1.31667,-76.50000)[natural=water][name];
  );
  out center tags;

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Search criteria from Wikidata

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body of water (Q15324)	natural=water
watercourse (Q355304)	waterway
stream (Q47521)	waterway