{
    "id": "http://trec-kba.org/schemas/v1.0/content-item.json",
    "description": "Raw data, such as text, used by stream-item for 'title', 'body', and 'anchor'.",
    "type": "object",
    "$schema": "http://json-schema.org/draft-03/schema#",
    "properties": {
        "$schema": {
            "description": "URI of this JSON schema document.",
            "type": "string",
            "enum": ["http://trec-kba.org/schemas/v1.0/content-item.json"],
            "required": false,
            "default": "http://trec-kba.org/schemas/v1.0/content-item.json"
            },
        "raw": {
            "description": "Raw data downloaded from remote source.  This is always treated as a byte array and converted to a string literal using python v2.7.2 String.encode('string-escape').  See http://trec-kba.org/corpus.shtml for more info.",
            "type": "string",
            "required": true
            },
        "encoding": {
            "description": "Character encoding extracted from headers, and if that fails then the first <meta.*?charset tag in 'raw'.",
            "type": "string",
            "required": false
            },
        "stages": {
            "description": "Sequence of post-processing steps applied to 'raw' in order to produce additional properties on this content-item instance.",
            "type": "array",
	    "items": {
		"description": "Name of post-processing step.",
		"type": "object",
                "properties": {
                    "name": {
                        "description": "Property name on the content-item instance containing the output of this stage of processing.  These property names are not defined in this schema.  Such added properties are permitted because content-item.additionalProperties is true.",
                        "type": "string"
                        },
                    "description": {
                        "description": "Human-readable description of the software configuration used in this stage of processing.",
                        "type": "string"
                        }
                    }
                },
            "required": true
            }
        }
    }