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.

Example Input: Sentence: 'a small clean unoccupied bathroom on public transportation'. Reverse all words of length '10' in the given sentence.
Example Output: a small clean deipucconu bathroom on public transportation

Example Input: Sentence: 'a large red truck on a city street'. Reverse all words of length '4' in the given sentence.
Example Output: a large red truck on a ytic street

Example Input: Sentence: 'three people with backpacks on skies moving up a hill'. Reverse all words of length '9' in the given sentence.
Example Output:
three people with skcapkcab on skies moving up a hill