TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'a man that is sitting on a horse in the grass'. How many words contain the letter 'y' in the sentence.

SOLUTION: 0

PROBLEM: Sentence: 'looking out a window at a tall building with a clock on the face'. How many words contain the letter 'l' in the sentence.

SOLUTION: 4

PROBLEM: Sentence: 'a person riding a surf board down a wave'. How many words contain the letter 'g' in the sentence.

SOLUTION:
1