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 person in skis is standing in the snow'. Reverse all words of length '2' in the given sentence.

SOLUTION: a person ni skis si standing ni the snow

PROBLEM: Sentence: 'a red pair of scissors on top of an envelope'. Reverse all words of length '2' in the given sentence.

SOLUTION: a red pair fo scissors no top fo na envelope

PROBLEM: Sentence: 'momma elephant with baby elephant beside her grazing'. Reverse all words of length '3' in the given sentence.

SOLUTION:
momma elephant with baby elephant beside reh grazing