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: 'man extending arm with three bananas crosswise on it'. Reverse all words of length '4' in the given sentence.

SOLUTION: man extending arm htiw three bananas crosswise on it

PROBLEM: Sentence: 'a woman is hiding behind a man holding a skateboard'. Reverse all words of length '1' in the given sentence.

SOLUTION: a woman is hiding behind a man holding a skateboard

PROBLEM: Sentence: 'a man with unusual pants is waiting on a table at an outside restaurant'. Reverse all words of length '7' in the given sentence.

SOLUTION:
a man with lausunu pants is gnitiaw on a table at an edistuo restaurant