makecards.json

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "version": "1.0.0",
  "definitions": {
    "itemLookup": {
      "type": "array",
      "uniqueItems": true,
      "items": {
        "type": "object",
        "properties": {
          "abbreviation": {
            "type": "string"
          },
          "name": {
            "type": "string"
          },
          "entries": {
            "type": "array",
            "items": {
              "$ref": "entry.json"
            }
          }
        },
        "required": ["abbreviation"],
        "additionalProperties": false
      }
    }
  },
  "type": "object",
  "properties": {
    "reducedItemProperty": {
      "$ref": "#/definitions/itemLookup"
    },
    "reducedItemType": {
      "$ref": "#/definitions/itemLookup"
    }
  },
  "additionalProperties": false
}