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

Example Input: Sentence: 'a panthers football player holding a baseball bat and basketball'. How many words contain the letter 'y' in the sentence.
Example Output: 1

Example Input: Sentence: 'bus moving through parking lot in front of building'. How many words contain the letter 'g' in the sentence.
Example Output: 4

Example Input: Sentence: 'a baseball player in a blue and white uniform up to bat'. How many words contain the letter 'u' in the sentence.
Example Output:
3