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 bunch of umbrellas are up in the air'. Reverse all words of length '9' in the given sentence.
Example Output: a bunch of sallerbmu are up in the air

Example Input: Sentence: 'a small kitchen with oak cabinets and white appliances'. Reverse all words of length '10' in the given sentence.
Example Output: a small kitchen with oak cabinets and white secnailppa

Example Input: Sentence: 'a red motorcycle parked next to a crowd of people'. Reverse all words of length '6' in the given sentence.
Example Output:
a red motorcycle dekrap next to a crowd of elpoep