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

[EX Q]: Sentence: 'a panthers football player holding a baseball bat and basketball'. How many words contain the letter 'y' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a skier posing for a photo in front of a slope'. How many words contain the letter 'a' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'a man talking on a cell phone cycles down the street'. How many words contain the letter 'n' in the sentence.
[EX A]:
5