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 happy white man with sunglasses on a boat'. Reverse all words of length '1' in the given sentence.

SOLUTION: a happy white man with sunglasses on a boat

PROBLEM: Sentence: 'the bicyclist is sitting on the back of the decorative bench to check her phone'. Reverse all words of length '3' in the given sentence.

SOLUTION:
eht bicyclist is sitting on eht back of eht decorative bench to check reh phone