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 woman stepping out of a double decker bus'. Reverse all words of length '8' in the given sentence.
[EX A]: a woman gnippets out of a double decker bus

[EX Q]: Sentence: 'a bathroom area with writing on the wall and a mirror'. Reverse all words of length '4' in the given sentence.
[EX A]: a bathroom aera htiw writing on the llaw and a mirror

[EX Q]: Sentence: 'a polar bear nuzzling up against fresh snow'. Reverse all words of length '4' in the given sentence.
[EX A]:
a polar raeb nuzzling up against fresh wons