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: 'one white and black sheep and one brown and black sheep'. Reverse all words of length '5' in the given sentence.

SOLUTION: one etihw and kcalb peehs and one nworb and kcalb peehs

PROBLEM: Sentence: 'a herd of zebra standing in a forest'. Reverse all words of length '1' in the given sentence.

SOLUTION: a herd of zebra standing in a forest

PROBLEM: Sentence: 'a doughnut on a table in a room'. Reverse all words of length '1' in the given sentence.

SOLUTION:
a doughnut on a table in a room