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

[EX Q]: Sentence: 'dental personnel in dentist office standing in front of a computer screen'. How many words contain the letter 'w' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a sign that shows you are entering into joshua tree national park'. How many words contain the letter 't' in the sentence.
[EX A]: 5

[EX Q]: Sentence: 'a young man riding a surf board on top of the waves'. How many words contain the letter 'u' in the sentence.
[EX A]:
2