{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "schema:Recommendation",
  "title": "Recommendation",
  "description": "[[Recommendation]] is a type of [[Review]] that suggests or proposes something as the best option or best course of action. Recommendations may be for products or services, or other concrete things, as in the case of a ranked list or product guide. A [[Guide]] may list multiple recommendations for different categories. For example, in a [[Guide]] about which TVs to buy, the author may have several [[Recommendation]]s.",
  "type": "object",
  "allOf": [
    {
      "description": "A review of an item - for example, of a restaurant, movie, or store.",
      "$ref": "schema:Review"
    }
  ],
  "properties": {
    "category": {
      "description": "A category for the item. Greater signs or slashes can be used to informally indicate a category hierarchy.",
      "oneOf": [
        {
          "anyOf": [
            { "type": "string", "format": "uri" },
            { "type": "string" },
            { "$ref": "schema:CategoryCode" },
            { "$ref": "schema:PhysicalActivityCategory" },
            { "$ref": "schema:Thing" }
          ]
        },
        {
          "type": "array",
          "items": {
            "anyOf": [
              { "type": "string", "format": "uri" },
              { "type": "string" },
              { "$ref": "schema:CategoryCode" },
              { "$ref": "schema:PhysicalActivityCategory" },
              { "$ref": "schema:Thing" }
            ]
          }
        }
      ]
    }
  }
}