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

Example Input: Sentence: 'a young pitcher throws a ball on the pitchers mound while a man in red shirt looks at him'. How many words contain the letter 'z' in the sentence.
Example Output: 0

Example Input: Sentence: 'a bunch of people in a big field filled with bananas'. How many words contain the letter 'r' in the sentence.
Example Output: 0

Example Input: Sentence: 'two men on surf boards in the ocean'. How many words contain the letter 'g' in the sentence.
Example Output:
0