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

Example Input: Sentence: 'man and woman posing for picture before prom'. How many words contain the letter 'c' in the sentence.
Example Output: 1

Example Input: Sentence: 'a woman riding a motorcycle down a busy city street'. How many words contain the letter 'w' in the sentence.
Example Output: 2

Example Input: Sentence: 'men are looking at their phones while standing in a crowd'. How many words contain the letter 'z' in the sentence.
Example Output:
0