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

[Q]: Sentence: 'a laptop is displayed on a small wooden platform'. How many words contain the letter 'k' in the sentence.
[A]: 0


[Q]: Sentence: 'a rack full of clothes in a small bedroom'. How many words contain the letter 'o' in the sentence.
[A]: 3


[Q]: Sentence: 'five gray and white birds sand and water'. How many words contain the letter 'b' in the sentence.
[A]:
1