/** The key of the message: Stopwords File */
    public static final String LABELS_STOPWORDS_FILE = "{labels.stopwordsFile}";

    /** The key of the message: Stemmer Override File */
    public static final String LABELS_STEMMER_OVERRIDE_FILE = "{labels.stemmerOverrideFile}";

    /** The key of the message: Mapping File */
    public static final String LABELS_MAPPING_FILE = "{labels.mappingFile}";