checking if the first letter of a word is a vowel

I am trying to use python to write a function that checks whether the first letter of a given word, for instance "ball" is a vowel in either uppercase or lowercase. So for instance: ``` #here is a variable containing a word: my_word = "Acrobat" #letters in vowel as a list the_vowel = ["a","e","i","o","u"] ``` How do a check that the first letter in "Acrobat" is one of the vowels in the list? I also need to take into consideration whether it is upper or lowercase?