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

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


[Q]: Sentence: 'a person leaning on an elephant statue near trees'. How many words contain the letter 's' in the sentence.
[A]: 3


[Q]: Sentence: 'a tv room with a rolling cart full of books'. How many words contain the letter 'l' in the sentence.
[A]:
2