TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'a teddy bear laying on a pillow on a bed'. How many words contain the letter 'w' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a train on the side of a road on the edge of the water'. How many words contain the letter 'u' in the sentence.

SOLUTION: 0

PROBLEM: Sentence: 'a platform for a train station with several trains stopped'. How many words contain the letter 'e' in the sentence.

SOLUTION:
2