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

[Q]: Sentence: 'the tennis player returns a serve of the tennis ball'. How many words contain the letter 'q' in the sentence.
[A]: 0


[Q]: Sentence: 'a bus station full of people walking on the side walk'. How many words contain the letter 'q' in the sentence.
[A]: 0


[Q]: Sentence: 'a blue bowl with a banana two lemons two lines and an apple'. How many words contain the letter 'n' in the sentence.
[A]:
5