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

[EX Q]: Sentence: 'a laptop computer that is sitting on a desk'. How many words contain the letter 't' in the sentence.
[EX A]: 4

[EX Q]: Sentence: 'a dog lying down with a blanket on top of it'. How many words contain the letter 'o' in the sentence.
[EX A]: 5

[EX Q]: Sentence: 'children are getting off a bus while a woman directs them'. How many words contain the letter 'n' in the sentence.
[EX A]:
3