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

[EX Q]: Sentence: 'some zebras dirt plants and bushes'. How many words contain the letter 'r' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a white plate of food including rice and vegetables with beef'. How many words contain the letter 'o' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a man standing on the side of a road with bags of luggage'. How many words contain the letter 'z' in the sentence.
[EX A]:
0