TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'a airplane that has a propeller on the wing'. How many words contain the letter 'z' in the sentence.

SOLUTION: 0

PROBLEM: Sentence: 'some brown and white goats and a man on some grass'. How many words contain the letter 'o' in the sentence.

SOLUTION: 5

PROBLEM: Sentence: 'a picture of a black train driving through the city'. How many words contain the letter 'c' in the sentence.

SOLUTION:
3