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

SOLUTION: 0

PROBLEM: Sentence: 'a glass vase with clear glass marbles in it and purple flowers coming out of the vase'. How many words contain the letter 'd' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a man with no shirt on a skate board'. How many words contain the letter 'n' in the sentence.

SOLUTION:
3