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

[EX Q]: Sentence: 'a woman on crosscountry skiing through a wooded trail'. How many words contain the letter 'q' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a woman surfer is on an ocean wave'. How many words contain the letter 's' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a couple of zebras grazing on some grass'. How many words contain the letter 'n' in the sentence.
[EX A]:
2