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.

Ex Input:
Sentence: 'a group of zebras gather at a watering hole'. Reverse all words of length '1' in the given sentence.

Ex Output:
a group of zebras gather at a watering hole


Ex Input:
Sentence: 'a couch and table sits outside with fake sheep'. Reverse all words of length '1' in the given sentence.

Ex Output:
a couch and table sits outside with fake sheep


Ex Input:
Sentence: 'a group of cows that are standing in the grass'. Reverse all words of length '5' in the given sentence.

Ex Output:

a puorg of cows that are standing in the ssarg