TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'many different species of sheep in display at a museum'. How many words contain the letter 'p' in the sentence.

SOLUTION: 3

PROBLEM: Sentence: 'a group of people skiing down a mountain slope'. How many words contain the letter 'e' in the sentence.

SOLUTION: 2

PROBLEM: Sentence: 'a package of will return signs on a counter with books'. How many words contain the letter 'o' in the sentence.

SOLUTION:
4