TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'a cellphone mounted to a dashboard of a car'. How many words contain the letter 'p' in the sentence.

SOLUTION: 1

PROBLEM: Sentence: 'a man holding a racquet hits a tennis ball'. How many words contain the letter 'v' in the sentence.

SOLUTION: 0

PROBLEM: Sentence: 'a couple of park benches sitting next to each other in a park'. How many words contain the letter 's' in the sentence.

SOLUTION:
2