TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'a clean kitchen with several cabinets a sink a coffee maker and a vase of flowers'. How many words contain the letter 'p' in the sentence.

SOLUTION: 0

PROBLEM: Sentence: 'a man in a helmet leans on his motorcycle'. How many words contain the letter 'n' in the sentence.

SOLUTION: 4

PROBLEM: Sentence: 'two people carrying skis during the day and smiling'. How many words contain the letter 's' in the sentence.

SOLUTION:
2