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

[Q]: Sentence: 'a person in uniform is on a motorcycle near other uniformed people'. How many words contain the letter 'r' in the sentence.
[A]: 6


[Q]: Sentence: 'the young giraffe is standing near the fence'. How many words contain the letter 's' in the sentence.
[A]: 2


[Q]: Sentence: 'a black and brown bear some bushes plants and a branch'. How many words contain the letter 's' in the sentence.
[A]:
3