TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'a long train is coming down some tracks'. How many words contain the letter 'w' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'people holding a surfboard and walking down the beach'. How many words contain the letter 'n' in the sentence.

SOLUTION: 4

PROBLEM: Sentence: 'someone walking their dog in the middle of the street'. How many words contain the letter 'a' in the sentence.

SOLUTION:
1