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

[EX Q]: Sentence: 'a close up of two black cows grazing the grass'. How many words contain the letter 'u' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a person is riding a bicycle on the street'. How many words contain the letter 'b' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'skateboarders at a park skating in an empty pool'. How many words contain the letter 'o' in the sentence.
[EX A]:
2