the guess variable contains player' letter guess the program needs to make sure they typed in valid guessone and only one lowercase letter if they didn'tthe execution should loop back and ask them for letter again line ' condition checks if guess is not one character long line ' condition checks if guess already exists inside the alreadyguessed variable line ' condition checks if guess is not lowercase letter if all of these conditions are falsethen the else statement' block executes and getguess(returns the value in guess on line rememberonly one of the blocks in if-elif-else statements will be executed asking the player to play again def playagain() this function returns true if the player wants to play againotherwise it returns false print('do you want to play again(yes or no)' return input(lower(startswith(' 'the playagain(function has just print(function call and return statement the return statement has an expression that looks complicatedbut you can break it down here' step by step look at how python evaluates this expression if the user types in yes input(lower(startswith(' ' 'yeslower(startswith(' ' 'yesstartswith(' ' true the point of the playagain(function is to let the player type in yes or no to tell the program if they want to play another round of hangman the player should be able to type yesyesyor anything else that begins with "yin order to mean "yesif the player types in yesthen the return value of input(is the string 'yesand 'yeslower(returns the lowercase version of the attached string so the return value of 'yeslower(is 'yesbut there' the second method callstartswith(' 'this function returns true if the associated string begins with the string parameter between the parenthesesand false if it doesn' the return value of 'yesstartswith(' 'is true