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.

Sentence: 'small blue and red bird standing on rear of zebra'. Reverse all words of length '8' in the given sentence.
small blue and red bird gnidnats on rear of zebra

Sentence: 'a gray tiger cat sitting on top of a chair'. Reverse all words of length '3' in the given sentence.
a gray tiger tac sitting on pot of a chair

Sentence: 'an elephant enjoying a nice bath in a large body of water'. Reverse all words of length '5' in the given sentence.

an elephant enjoying a nice bath in a egral body of retaw