{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "nlu-analysis.json",
  "title": "NLU Analysis",
  "description": "Results from an IBM Natural Language Understanding analysis.",
  "type": "object",
  "properties": {
    "language": {
      "type": "string",
      "description": "The detected language of the analyzed text."
    },
    "analyzed_text": {
      "type": "string",
      "description": "The text that was analyzed."
    },
    "sentiment": {
      "type": "object",
      "description": "Document-level sentiment analysis.",
      "properties": {
        "document": {
          "type": "object",
          "properties": {
            "score": {
              "type": "number",
              "minimum": -1,
              "maximum": 1
            },
            "label": {
              "type": "string",
              "enum": ["positive", "negative", "neutral"]
            }
          }
        }
      }
    },
    "emotion": {
      "type": "object",
      "description": "Document-level emotion analysis.",
      "properties": {
        "document": {
          "type": "object",
          "properties": {
            "emotion": {
              "type": "object",
              "properties": {
                "sadness": { "type": "number" },
                "joy": { "type": "number" },
                "fear": { "type": "number" },
                "disgust": { "type": "number" },
                "anger": { "type": "number" }
              }
            }
          }
        }
      }
    },
    "entities": {
      "type": "array",
      "description": "Detected entities.",
      "items": {
        "type": "object",
        "properties": {
          "type": { "type": "string" },
          "text": { "type": "string" },
          "relevance": { "type": "number" },
          "count": { "type": "integer" },
          "confidence": { "type": "number" }
        }
      }
    },
    "keywords": {
      "type": "array",
      "description": "Extracted keywords.",
      "items": {
        "type": "object",
        "properties": {
          "text": { "type": "string" },
          "relevance": { "type": "number" },
          "count": { "type": "integer" }
        }
      }
    },
    "categories": {
      "type": "array",
      "description": "Content categories.",
      "items": {
        "type": "object",
        "properties": {
          "label": { "type": "string" },
          "score": { "type": "number" }
        }
      }
    },
    "concepts": {
      "type": "array",
      "description": "High-level concepts.",
      "items": {
        "type": "object",
        "properties": {
          "text": { "type": "string" },
          "relevance": { "type": "number" },
          "dbpedia_resource": { "type": "string" }
        }
      }
    }
  }
}