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

[Q]: Sentence: 'a water fountain sitting in the middle of a bathroom'. How many words contain the letter 'h' in the sentence.
[A]: 2

[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: 'two rams fighting on highway in wilderness area'. How many words contain the letter 'u' in the sentence.
[A]:
0