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

[EX Q]: Sentence: 'a couple sitting on seats on a train'. How many words contain the letter 'z' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a room with a small light in the middle with a computer'. How many words contain the letter 's' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a man and a lady hanging out in the kitchen'. How many words contain the letter 'v' in the sentence.
[EX A]:
0