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

[EX Q]: Sentence: 'adult men playing with flying disc at popular beach'. How many words contain the letter 'o' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a van follows behind a bus on a rural road'. How many words contain the letter 'q' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a man that is on a green surfboard in water'. How many words contain the letter 'n' in the sentence.
[EX A]:
4