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

[Q]: Sentence: 'a woman swinging a tennis racquet in the air'. How many words contain the letter 'z' in the sentence.
[A]: 0


[Q]: Sentence: 'people riding on an old style passenger train'. How many words contain the letter 'q' in the sentence.
[A]: 0


[Q]: Sentence: 'a black sign that is standing in the grass'. How many words contain the letter 'f' in the sentence.
[A]:
0