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

[EX Q]: Sentence: 'a silver television a black couch a table and some ceiling fans'. How many words contain the letter 's' in the sentence.
[EX A]: 4

[EX Q]: Sentence: 'people riding on an old style passenger train'. How many words contain the letter 'q' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a black cat sleeping in the sun on a bench'. How many words contain the letter 'w' in the sentence.
[EX A]:
0