TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'a pair of feet wearing slippers pointed at the floor'. How many words contain the letter 'e' in the sentence.

SOLUTION: 5

PROBLEM: Sentence: 'a keyboard on a table with a toothbrush a book some sunglasses and coffee'. How many words contain the letter 'e' in the sentence.

SOLUTION: 5

PROBLEM: Sentence: 'the large industrial kitchen is very organized and clean'. How many words contain the letter 'k' in the sentence.

SOLUTION:
1