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

Example Input: Sentence: 'an old airplane sitting on top of a field'. How many words contain the letter 'h' in the sentence.
Example Output: 0

Example Input: Sentence: 'a picture of a scene in a baseball game'. How many words contain the letter 'g' in the sentence.
Example Output: 1

Example Input: Sentence: 'a man in a clown suit carries a frisbee'. How many words contain the letter 'c' in the sentence.
Example Output:
2