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

[EX Q]: Sentence: 'sitting room with couch and entertainment system in cabinets'. How many words contain the letter 'e' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'a cat is walking on a wooden deck in the snow'. How many words contain the letter 'q' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a bathroom with a wooden book shelf in it'. How many words contain the letter 'h' in the sentence.
[EX A]:
3