TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'a pile of stuffed brown teddy bears wearing clothing'. How many words contain the letter 'w' in the sentence.

SOLUTION: 2

PROBLEM: Sentence: 'a large field is next to a river'. How many words contain the letter 'j' in the sentence.

SOLUTION: 0

PROBLEM: Sentence: 'an intersection taken through a rain covered glass'. How many words contain the letter 'm' in the sentence.

SOLUTION:
0