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

[Q]: Sentence: 'a large pizza smothered in cheese and sauce'. How many words contain the letter 'a' in the sentence.
[A]: 5


[Q]: Sentence: 'a apple that is sitting on top of a knife'. How many words contain the letter 'u' in the sentence.
[A]: 0


[Q]: Sentence: 'motorcycle parked on the edge of a street'. How many words contain the letter 'b' in the sentence.
[A]:
0