public static String removeContraction(String s){
		String[] words = s.split("\\s+");
		String output = "";
		for (int i=0; i<words.length; i++){
			String current = words[i];
			if (current.contains("'")){
				int index = current.indexOf("'");
				if (current.charAt(index+1) == 's'){
					output += current.substring(0, index) + " is";
				} else if (current.charAt(index+1) == 't'){
					if (current.equals("won't")){
						output += "will not";
					} else if(current.equals("can't")){
						output += "can not";
					} else if (current.equals("don't")){
						output += "do not";
					} else {
						output += current.substring(0, index) + " not";
					}
				} else {
					output += current;
				}
			} else {
				output += current;
			}
			output += " ";
		}
		return output;
	}