{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "livingThings": {
      "type": "array",
      "items": {
        "properties": {
          "species": {
            "type": "string"
          },
          "population": {
            "type": "number"
          }
        },
        "required": [
          "species"
        ]
      }
    }
  },
  "required": [
    "livingThings"
  ]
}