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

[EX Q]: Sentence: 'there are trains that are on the train track'. How many words contain the letter 'z' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'green bananas or plantains hang in a bunch on a tree'. How many words contain the letter 'm' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a young girl flying a red kite next to a guy'. How many words contain the letter 'x' in the sentence.
[EX A]:
1