public boolean isLetterUsed(char guess) {
		boolean result = false;
		boolean containsInPlaceholder = placeholder.contains(guess);
		boolean containsInWrongLetters = wrongLetters.contains(guess);
//		System.out.println("PH: " + containsInPlaceholder);
//		System.out.println("WL: " + containsInWrongLetters);
		if (containsInPlaceholder || containsInWrongLetters) {
			result = true;
		}
		return result;
	}