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: 'two giraffes with beautiful markings are shown from behind'. Reverse all words of length '8' in the given sentence.

SOLUTION: two seffarig with beautiful sgnikram are shown from behind

PROBLEM: Sentence: 'a water bottle sitting on top of a counter'. Reverse all words of length '6' in the given sentence.

SOLUTION: a water elttob sitting on top of a counter

PROBLEM: Sentence: 'two cows standing in a grassy field next to a fence'. Reverse all words of length '4' in the given sentence.

SOLUTION:
two swoc standing in a grassy field txen to a fence