TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'a hotel room with a nice tv and sofa setup'. How many words contain the letter 'i' in the sentence.

SOLUTION: 2

PROBLEM: Sentence: 'a white cat sitting on a couch in a den'. How many words contain the letter 'l' in the sentence.

SOLUTION: 0

PROBLEM: Sentence: 'rows of computers sit on a group of desks in a classroom'. How many words contain the letter 'r' in the sentence.

SOLUTION:
4