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

[EX Q]: Sentence: 'a girl at a lake is looking at sand inside of a frisbee'. How many words contain the letter 'u' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a teddy bear laying on a pillow on a bed'. How many words contain the letter 'w' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a very cute cat sitting near a computer monitor'. How many words contain the letter 'w' in the sentence.
[EX A]:
0