Exercise $8$: Vowels

Create a program that will use the variable letter to represent a string. The

program will determines if letter is a vowel $(a,e,i,o,$ and $u).$ If yes, print

vowel. If no$,$ print not a vowel.

You will need to declare letter and write an input statement for it$.$

When testing your code you can use the following test data:

Input: a

Output: your letter is a vowel