Split method link: • 137. String Rindex and Split Method in Pyt... Lower method link: • 131. String Lower and Rjust Method in Pyth... Code: my_str='Permutation means arrangement and combination means selection of objects' #my_str=input("Enter a string:") words=[word.lower() for word in my_str.split()] words.sort() print("The sorted words are:") for word in words: print(word)