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

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 group of bears sitting next to each other on a sidewalk'. How many words contain the letter 't' in the sentence.
Example Output: 4

Example Input: Sentence: 'a surfer riding the waves of the ocean'. How many words contain the letter 'n' in the sentence.
Example Output:
2