TASK DEFINITION: In this task, you need to count the number of words in a sentence that contain the given letter
PROBLEM: Sentence: 'a man is holding a bunch of green bananas in his yard'. How many words contain the letter 'i' in the sentence.

SOLUTION: 4

PROBLEM: Sentence: 'dental personnel in dentist office standing in front of a computer screen'. How many words contain the letter 'w' in the sentence.

SOLUTION: 0

PROBLEM: Sentence: 'some potatoes sitting in a pan in an oven'. How many words contain the letter 'o' in the sentence.

SOLUTION:
3