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

[Q]: Sentence: 'a toilet and long handled plunger in a cleaned bathroom'. How many words contain the letter 'i' in the sentence.
[A]: 2


[Q]: Sentence: 'a person in the air on skis on a mountain slope'. How many words contain the letter 'w' in the sentence.
[A]: 0


[Q]: Sentence: 'a couple of people in skis are in the snow'. How many words contain the letter 'e' in the sentence.
[A]:
4