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 group of people loading a tour bus'. Reverse all words of length '3' in the given sentence.

SOLUTION: a group of people loading a tour sub

PROBLEM: Sentence: 'a person jumping up into the air on a skateboard'. Reverse all words of length '1' in the given sentence.

SOLUTION: a person jumping up into the air on a skateboard

PROBLEM: Sentence: 'two men standing by each other playing wii'. Reverse all words of length '8' in the given sentence.

SOLUTION:
two men gnidnats by each other playing wii