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.
Input: Sentence: 'an empty kitchen and living room decorated in shades of white and black'. Reverse all words of length '9' in the given sentence.

an empty kitchen and living room detaroced in shades of white and black