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

Example Input: Sentence: 'two stuffed pandas near a small shack near a body of water'. How many words contain the letter 'g' in the sentence.
Example Output: 0

Example Input: Sentence: 'a person in a helmet riding a skateboard'. How many words contain the letter 'c' in the sentence.
Example Output: 0

Example Input: Sentence: 'a motorcycle riding on the side of a car on the road'. How many words contain the letter 'n' in the sentence.
Example Output:
3