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

[Q]: Sentence: 'a person that is wearing glasses looking into a mirror'. How many words contain the letter 'f' in the sentence.
[A]: 0


[Q]: Sentence: 'two men are dancing in a parade with brown umbrellas'. How many words contain the letter 'r' in the sentence.
[A]: 4


[Q]: Sentence: 'the bathroom sink counter has drawers beneath it and a mirror above'. How many words contain the letter 'v' in the sentence.
[A]:
1