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 soldier holds something for a young bear'. How many words contain the letter 'a' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'three men in nice clothing talking to each other'. How many words contain the letter 'g' in the sentence.
[EX A]:
2