TASK DEFINITION: In this task, you need to reverse all words of a given length in the sentence. The number of letters in a word determine its length. For example, the length of the word "apple" is 5.
PROBLEM: Sentence: 'a bunch of umbrellas are up in the air'. Reverse all words of length '9' in the given sentence.

SOLUTION: a bunch of sallerbmu are up in the air

PROBLEM: Sentence: 'two baseball players look on awaiting the pitch to be made'. Reverse all words of length '5' in the given sentence.

SOLUTION: two baseball players look on awaiting the hctip to be made

PROBLEM: Sentence: 'a cat sitting on top of a television set that is showing a baseball game'. Reverse all words of length '7' in the given sentence.

SOLUTION:
a cat gnittis on top of a television set that is gniwohs a baseball game