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

[Q]: Sentence: 'a plate has many different types of food on it'. How many words contain the letter 'r' in the sentence.
[A]: 1


[Q]: Sentence: 'the jet is flying through the sky during the day'. How many words contain the letter 'i' in the sentence.
[A]: 3


[Q]: Sentence: 'an empty store with drinks fruit and chips on display'. How many words contain the letter 'n' in the sentence.
[A]:
4