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 family room area without anybody in it'. Reverse all words of length '7' in the given sentence.

SOLUTION: a family room area tuohtiw ydobyna in it

PROBLEM: Sentence: 'a man plays a game with a wii controller'. Reverse all words of length '1' in the given sentence.

SOLUTION: a man plays a game with a wii controller

PROBLEM: Sentence: 'a group of sheep graze in a grassy field'. Reverse all words of length '2' in the given sentence.

SOLUTION:
a group fo sheep graze ni a grassy field