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

[Q]: Sentence: 'a group of people dressed professionally outside'. How many words contain the letter 'j' in the sentence.
[A]: 0


[Q]: Sentence: 'a view from inside a train cart going down a track'. How many words contain the letter 'e' in the sentence.
[A]: 2


[Q]: Sentence: 'a boy eats a large pizza on a metal platter'. How many words contain the letter 'r' in the sentence.
[A]:
2