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

[EX Q]: Sentence: 'a toilet and long handled plunger in a cleaned bathroom'. How many words contain the letter 'i' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a cat that is laying down with a mouse on top of it'. How many words contain the letter 'm' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'two angles of a frosted donut with a bite taken out of the side'. How many words contain the letter 'z' in the sentence.
[EX A]:
0