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 and woman holding electronic devices in their hands'. How many words contain the letter 'e' in the sentence.

SOLUTION: 3

PROBLEM: Sentence: 'a man in mid swing of a baseball bat'. How many words contain the letter 'k' in the sentence.

SOLUTION: 0

PROBLEM: Sentence: 'a subway train letting passengers on at a station'. How many words contain the letter 'j' in the sentence.

SOLUTION:
0