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

Example Input: Sentence: 'a young boy holds a baseball bat while a man stands next to him'. How many words contain the letter 'p' in the sentence.
Example Output: 0

Example Input: Sentence: 'some stop lights that are at an intersection'. How many words contain the letter 'c' in the sentence.
Example Output: 1

Example Input: Sentence: 'a keyboard equipped with a gel wrist wrest'. How many words contain the letter 'g' in the sentence.
Example Output:
1