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 woman is riding a show horse at a competition'. Reverse all words of length '6' in the given sentence.

SOLUTION: a woman is gnidir a show horse at a competition

PROBLEM: Sentence: 'an elderly man in a jacket is walking outside of a window'. Reverse all words of length '3' in the given sentence.

SOLUTION: an elderly nam in a jacket is walking outside of a window

PROBLEM: Sentence: 'a group of people sitting around a table'. Reverse all words of length '2' in the given sentence.

SOLUTION:
a group fo people sitting around a table