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

[EX Q]: Sentence: 'a ram standing still in an empty pasture'. How many words contain the letter 'x' in the sentence.
[EX A]: 0

[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: 'a close up of two people wearing ties'. How many words contain the letter 'o' in the sentence.
[EX A]:
4