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

[EX Q]: Sentence: 'a group of people skiing down a mountain slope'. How many words contain the letter 'e' in the sentence.
[EX A]: 2

[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: 'a baby putting its hand in a blue and white cake'. How many words contain the letter 'g' in the sentence.
[EX A]:
1