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 stop light that is out on a pole'. How many words contain the letter 'z' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a lot of christmas ornaments are hung on the tree'. How many words contain the letter 'h' in the sentence.
[EX A]:
3