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 dog standing on top of a dirt field next to a frisbee'. Reverse all words of length '4' in the given sentence.
Example Output: a dog standing on top of a trid field txen to a frisbee

Example Input: Sentence: 'a couple of women sitting on a bench with a dog'. Reverse all words of length '4' in the given sentence.
Example Output: a couple of women sitting on a bench htiw a dog

Example Input: Sentence: 'a man standing next to a parked motorcycle in a building'. Reverse all words of length '3' in the given sentence.
Example Output:
a nam standing next to a parked motorcycle in a building