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

[EX Q]: Sentence: 'a close up of a business sign on a building'. How many words contain the letter 'y' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a gothic tower features a clock near a river'. How many words contain the letter 'e' in the sentence.
[EX A]: 4

[EX Q]: Sentence: 'two boats sit on the shore as night fall rolls in'. How many words contain the letter 'w' in the sentence.
[EX A]:
1