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

[EX Q]: Sentence: 'a computer desk holding a laptop computer and white ceramic lamp'. How many words contain the letter 'r' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'a white cat sitting on a couch in a den'. How many words contain the letter 'l' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'an elephant eating from a thorny bush amongst greenery'. How many words contain the letter 'm' in the sentence.
[EX A]:
2