code: package com.quui.tm2.agents.classifier.console;
  
  /**
   * Enum for keys used in the properties file
   */
  public enum Keys {
  	DEBUG("debug"), FILTER("filter"), STOP("stopwords"), LENGTH("use_length"), TRUE(
  			"true"), CONTEXT("context"), ENCODING("encoding"), DIGITS("digits"), SENSES(
  			"senses"), LAYERS("layers"), PATTERN_FACTOR("pattern_factor"), TREE_STRUCTURE(
  			"tree_structure"), FEATURES("features"), FEATURES_LENGTH("length"), FEATURE_N_GRAM(
  			"gram"), PARALLEL("parallel"), FEATURE_PARADIGMS("paradigms"), WEKA("weka");
  	public String key;
  
  	Keys(String key) {
  		this.key = key;
  	}
  }