TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'a stop light that is out on a pole'. How many words contain the letter 'z' in the sentence.

SOLUTION: 0

PROBLEM: Sentence: 'a large dog curls up on the pillow on a bunk bed'. How many words contain the letter 't' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a green commuter train traveling down train tracks'. How many words contain the letter 'o' in the sentence.

SOLUTION:
2