{
    "$schema": "http://json-schema.org/draft-04/schema",
    "additionalProperties": false,
    "description": "Models a keyword used in describing a piece of content.",
    "properties": {
        "frequency": {
            "description": "An optional count of the frequency of the keyword as it appears in the content it describes",
            "type": "integer"
        },
        "keyword": {
            "description": "The keyword used to describe a piece of content",
            "type": "string"
        },
        "score": {
            "description": "An arbitrary weighting to give the keyword",
            "type": "number"
        },
        "tag": {
            "description": "The Part of Speech tag for this keyword.",
            "type": "string"
        }
    },
    "required": [
        "keyword",
        "score"
    ],
    "title": "Keyword",
    "type": "object"
}