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: 'photo taken in living room towards kitchen counter with bar stools'. Reverse all words of length '7' in the given sentence.

photo taken in living room sdrawot nehctik retnuoc with bar stools