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 and a dog in the water with a surfboard'. Reverse all words of length '2' in the given sentence.
Example Output: a man and a dog ni the water with a surfboard

Example Input: Sentence: 'there are two men sitting on a park bench'. Reverse all words of length '5' in the given sentence.
Example Output: ereht are two men sitting on a park hcneb

Example Input: Sentence: 'a group of bicyclists with running with scissors moto'. Reverse all words of length '2' in the given sentence.
Example Output:
a group fo bicyclists with running with scissors moto