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

[EX Q]: Sentence: 'a man holding a frisbee above a crowd of young men'. How many words contain the letter 'i' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a couple of cut outs of plants berries and apples'. How many words contain the letter 'd' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'graffiti can be seen on the old parking meter on the sidewalk'. How many words contain the letter 'u' in the sentence.
[EX A]:
0