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

[Q]: Sentence: 'a very big nice looking kitchen that is well lit'. How many words contain the letter 'r' in the sentence.
[A]: 1


[Q]: Sentence: 'a large jetliner with a space shuttle on its back next to a fighter jet'. How many words contain the letter 'm' in the sentence.
[A]: 0


[Q]: Sentence: 'a dog lying on a persons legs and a large purse'. How many words contain the letter 'e' in the sentence.
[A]:
4