Schema.org QuantitativeValue

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://schema.org/schemas/quantitative-value.json",
  "title": "Schema.org QuantitativeValue",
  "description": "A point value or interval for product characteristics and other purposes.",
  "type": "object",
  "required": ["@type"],
  "properties": {
    "@type": {
      "type": "string",
      "const": "QuantitativeValue",
      "description": "The Schema.org type."
    },
    "@context": {
      "type": "string",
      "default": "https://schema.org"
    },
    "value": {
      "type": "number",
      "description": "The value."
    },
    "minValue": {
      "type": "number",
      "description": "The lower value of some characteristic or property."
    },
    "maxValue": {
      "type": "number",
      "description": "The upper value of some characteristic or property."
    },
    "unitCode": {
      "type": "string",
      "description": "The unit of measurement given using the UN/CEFACT Common Code."
    },
    "unitText": {
      "type": "string",
      "description": "A string indicating the unit of measurement."
    },
    "name": {
      "type": "string",
      "description": "The name of the quantity."
    },
    "additionalProperty": {
      "$ref": "schema-org-property-value-schema.json",
      "description": "A property-value pair representing an additional characteristic."
    },
    "valueReference": {
      "type": "object",
      "description": "A pointer to a secondary value that provides additional information.",
      "properties": {
        "@type": { "type": "string" },
        "value": {}
      }
    }
  }
}