TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'many people are playing a sports video game while standing up'. How many words contain the letter 'l' in the sentence.

SOLUTION: 3

PROBLEM: Sentence: 'a mother zebra standing next to a baby zebra'. How many words contain the letter 'e' in the sentence.

SOLUTION: 4

PROBLEM: Sentence: 'a peeled orange on a black plate next to a bun'. How many words contain the letter 'u' in the sentence.

SOLUTION:
1