In this task, you need to count the number of words in a sentence that contain the given letter

Example Input: Sentence: 'a man is water skiing in the ocean'. How many words contain the letter 'c' in the sentence.
Example Output: 1

Example Input: Sentence: 'a woman in the city is holding a bright kite'. How many words contain the letter 'v' in the sentence.
Example Output: 0

Example Input: Sentence: 'men holding tennis rackets are shaking hands above a net'. How many words contain the letter 'y' in the sentence.
Example Output:
0