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

[Q]: Sentence: 'person standing in the grass striking a baseball with a bat'. How many words contain the letter 's' in the sentence.
[A]: 5

[Q]: Sentence: 'a woman with long red hair packing herself into a suitcase'. How many words contain the letter 'i' in the sentence.
[A]: 5

[Q]: Sentence: 'a slice of chocolate cake on top of a white plate'. How many words contain the letter 'u' in the sentence.
[A]:
0