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

[Q]: Sentence: 'a skier posing for a photo in front of a slope'. How many words contain the letter 'a' in the sentence.
[A]: 3


[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.
[A]: 0


[Q]: Sentence: 'a herd of elephants standing on top of a grass covered field'. How many words contain the letter 'y' in the sentence.
[A]:
0