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

[EX Q]: Sentence: 'a man holding a tennis racquet on a tennis court'. How many words contain the letter 'w' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'an elephant near a man sitting down'. How many words contain the letter 'y' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a large bathroom that has wallpaper throughout it'. How many words contain the letter 'l' in the sentence.
[EX A]:
2