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

[Q]: Sentence: 'a airplane that has a propeller on the wing'. How many words contain the letter 'z' in the sentence.
[A]: 0


[Q]: Sentence: 'a man in a white turban drives a motorcycle along a dirty road'. How many words contain the letter 'd' in the sentence.
[A]: 3


[Q]: Sentence: 'a yellow van driving down a street in the middle of traffic'. How many words contain the letter 's' in the sentence.
[A]:
1