Write a function named initialLetters that takes one parameter, wordList - a list of words. Create and return a dictionary in which each initial letter of a word in wordList is a key and the corresponding value is a list of the words in wordList that begin with that letter. There should be no duplicate words in any value in the dictionary. For example, the following is correct output: G print(initialLetters(horton)) \{'I': [I'], 's': ['say'], 'w': ['what'], 'm': ['mean'], 'a': ['and']\}