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

Example Input: Sentence: 'a person skiing down part of a marked race course'. How many words contain the letter 'z' in the sentence.
Example Output: 0

Example Input: Sentence: 'a room with a mirror and a desk with a monitor'. How many words contain the letter 'z' in the sentence.
Example Output: 0

Example Input: Sentence: 'a bird flying over the water in the ocean shore'. How many words contain the letter 'o' in the sentence.
Example Output:
3