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 child is lighting candles on a cake'. How many words contain the letter 't' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a white and light gray kitchen with stove sink and refrigerator'. How many words contain the letter 'n' in the sentence.

SOLUTION:
4