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

[EX Q]: Sentence: 'people are parked along side the road by pay here signs'. How many words contain the letter 'a' in the sentence.
[EX A]: 5

[EX Q]: Sentence: 'living room that has boxes packed for moving'. How many words contain the letter 'u' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'the sausage hotdog with ketchup is on a blue plate'. How many words contain the letter 'r' in the sentence.
[EX A]:
0