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: 'an openair tour bus driving in a city'. Reverse all words of length '7' in the given sentence.

SOLUTION: an rianepo tour bus gnivird in a city

PROBLEM: Sentence: 'a white bear stuff toy sitting next to a mini chair and book'. Reverse all words of length '1' in the given sentence.

SOLUTION: a white bear stuff toy sitting next to a mini chair and book

PROBLEM: Sentence: 'a dog that is in a living room near a group of people'. Reverse all words of length '5' in the given sentence.

SOLUTION:
a dog that is in a living room near a puorg of people