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

[Q]: Sentence: 'a kitchen with a dining room table and a sitting area'. How many words contain the letter 'r' in the sentence.
[A]: 2


[Q]: Sentence: 'two women in an arena with a cow'. How many words contain the letter 'u' in the sentence.
[A]: 0


[Q]: Sentence: 'a couple of women standing around a fruit stand on a street corner'. How many words contain the letter 'o' in the sentence.
[A]:
6