/** The key of the message: Term */
    public static final String LABELS_related_content_term = "{labels.related_content_term}";

    /** The key of the message: Related Content */
    public static final String LABELS_related_content_title_details = "{labels.related_content_title_details}";

    /** The key of the message: Related Query */

                "fess_config.key_match", //
                "fess_config.label_type", //
                "fess_config.path_mapping", //
                "fess_config.related_content", //
                "fess_config.related_query", //
                "fess_config.request_header", //
                "fess_config.role_type", //
                "fess_config.scheduled_job", //

    /** The key of the configuration. e.g. boost */
    String INDEX_FIELD_BOOST = "index.field.boost";

    /** The key of the configuration. e.g. created */
    String INDEX_FIELD_CREATED = "index.field.created";

    /** The key of the configuration. e.g. timestamp */
    String INDEX_FIELD_TIMESTAMP = "index.field.timestamp";

    /** The key of the configuration. e.g. label */