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

Example Input: Sentence: 'looking out a window at a tall building with a clock on the face'. How many words contain the letter 'l' in the sentence.
Example Output: 4

Example Input: Sentence: 'a couple of horses standing next to each other on a field'. How many words contain the letter 'q' in the sentence.
Example Output: 0

Example Input: Sentence: 'a woman jumping up to hit a tennis ball'. How many words contain the letter 'c' in the sentence.
Example Output:
0