TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'a line of portable toilets stands outdoors under trees'. How many words contain the letter 'l' in the sentence.

SOLUTION: 3

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: 'a lot of colorful umbrellas lay out on the grass'. How many words contain the letter 'k' in the sentence.

SOLUTION:
0