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

[Q]: Sentence: 'a woman is standing at a fruit stand'. How many words contain the letter 'y' in the sentence.
[A]: 0


[Q]: Sentence: 'a person skiing down part of a marked race course'. How many words contain the letter 'z' in the sentence.
[A]: 0


[Q]: Sentence: 'two zebras stand by each other next to a tree in a grassland'. How many words contain the letter 'a' in the sentence.
[A]:
6