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

[EX Q]: Sentence: 'a view from a plane window near a large snowy peak'. How many words contain the letter 'u' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a sleek and pointy fighter jet flying in the sky'. How many words contain the letter 'f' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a black cat is laying on a chair'. How many words contain the letter 'z' in the sentence.
[EX A]:
0