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 man on a motor bike pulling a person on a skate board'. Reverse all words of length '5' in the given sentence.
Example Output: a man on a rotom bike pulling a person on a etaks draob

Example Input: Sentence: 'the tour buses are driving away from the building'. Reverse all words of length '5' in the given sentence.
Example Output: the tour sesub are driving away from the building

Example Input: Sentence: 'a herd of giraffe standing next to each other on a dirt field'. Reverse all words of length '2' in the given sentence.
Example Output:
a herd fo giraffe standing next ot each other no a dirt field