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 sign casting a shadow of a sign that says war'. How many words contain the letter 'y' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a zebra is standing in the shallow water'. How many words contain the letter 't' in the sentence.

SOLUTION: 3

PROBLEM: Sentence: 'a cat is laying near a pillow on a bed'. How many words contain the letter 'i' in the sentence.

SOLUTION:
3