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

[Q]: Sentence: 'a red car parked with a gas pump inserted into it'. How many words contain the letter 'l' in the sentence.
[A]: 0


[Q]: Sentence: 'this bus waits at a bus station for passengers to board'. How many words contain the letter 'e' in the sentence.
[A]: 1


[Q]: Sentence: 'picture of a small bedroom with luggage visible'. How many words contain the letter 'b' in the sentence.
[A]:
2