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

[EX Q]: Sentence: 'a tabby cat rests on a suitcase set on the floor in a room'. How many words contain the letter 'q' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'an elephant stands in the grass near a tree'. How many words contain the letter 'c' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a street light that is by a road'. How many words contain the letter 's' in the sentence.
[EX A]:
2