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.

[EX Q]: Sentence: 'a man is in the air riding a skateboard outside'. Reverse all words of length '2' in the given sentence.
[EX A]: a man si ni the air riding a skateboard outside

[EX Q]: Sentence: 'a traffic light with road instructions directs traffic'. Reverse all words of length '4' in the given sentence.
[EX A]: a traffic light htiw daor instructions directs traffic

[EX Q]: Sentence: 'two pieces of bread have sliced bananas on top'. Reverse all words of length '4' in the given sentence.
[EX A]:
two pieces of bread evah sliced bananas on top