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

[Q]: Sentence: 'a man in mid swing of a baseball bat'. How many words contain the letter 'k' in the sentence.
[A]: 0


[Q]: Sentence: 'a woman riding a motorcycle down a busy city street'. How many words contain the letter 'w' in the sentence.
[A]: 2


[Q]: Sentence: 'a plastic figure standing on a miniature skateboard'. How many words contain the letter 's' in the sentence.
[A]:
3