Problem
A. Create a value-returning function, isVowel, that returns the value true if a given character is a vowel and otherwise returns false.
B. create a program that:
a. Prompts the user to input a sentence and then press enter
b. Outputs the number of vowels as shown below. (Note period at the end of the sentence)
Your output should look like the following:
There are # vowels in this sentence.
... where # is the number of vowels.