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

[EX Q]: Sentence: 'martha stewart holding a fluffy siamese cat on her arms'. How many words contain the letter 'a' in the sentence.
[EX A]: 6

[EX Q]: Sentence: 'the view from the top of a ski slope'. How many words contain the letter 'r' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a an outhouse toilet filled with candles and an open toilet seat'. How many words contain the letter 'y' in the sentence.
[EX A]:
0