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

Example Input: Sentence: 'a man holding a racquet hits a tennis ball'. How many words contain the letter 'v' in the sentence.
Example Output: 0

Example Input: Sentence: 'a car stopped at a red light at an intersection'. How many words contain the letter 'l' in the sentence.
Example Output: 1

Example Input: Sentence: 'there is a bird in the sky with the plane'. How many words contain the letter 't' in the sentence.
Example Output:
4