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

[EX Q]: Sentence: 'ancient pottery being displayed on an exhibit case'. How many words contain the letter 's' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a young man wearing a red tie sitting next to a cat'. How many words contain the letter 'h' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'some giraffe are standing in the middle of a green pasture'. How many words contain the letter 's' in the sentence.
[EX A]:
3