Hydrogen

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      "hc": "https://holochain.org/",
      "mcp": "https://modelcontextprotocol.io/",
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  "@type": [
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  "@id": "https://economy3.org/substances/hydrogen",
  "name": "Hydrogen",
  "termCode": "hydrogen",
  "identifier": [
    {
      "@type": "PropertyValue",
      "propertyID": "https://ciaaw.org/",
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      "value": "hydrogen.htm"
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      "value": "hydrogen"
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