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

[EX Q]: Sentence: 'a long train is coming down some tracks'. How many words contain the letter 'w' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'an orange cat laying on top of a wooden table'. How many words contain the letter 'l' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a guy holding a cupcake with 2 lit up candles'. How many words contain the letter 'w' in the sentence.
[EX A]:
1