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

[EX Q]: Sentence: 'a smiling  woman wearing a hat holds up a snowboard'. How many words contain the letter 'b' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'there is a person awaiting to cross this street'. How many words contain the letter 'a' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a dog lying underneath a boath that has a horse in it'. How many words contain the letter 'h' in the sentence.
[EX A]:
5