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 decorative umbrella and various other items on display'. Reverse all words of length '5' in the given sentence.

SOLUTION: a decorative umbrella and various rehto smeti on display

PROBLEM: Sentence: 'the cox is standing behind the fence alone'. Reverse all words of length '2' in the given sentence.

SOLUTION: the cox si standing behind the fence alone

PROBLEM: Sentence: 'a day laying next to a cat on a cement block'. Reverse all words of length '1' in the given sentence.

SOLUTION:
a day laying next to a cat on a cement block