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

[EX Q]: Sentence: 'a street scene with cars and an city bus'. How many words contain the letter 's' in the sentence.
[EX A]: 4

[EX Q]: Sentence: 'two giraffe a mom and baby both with their heads up'. How many words contain the letter 'w' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'two sheep in the grass grazing on a hill'. How many words contain the letter 'z' in the sentence.
[EX A]:
1