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: 'a room with a green rug and a daybed'. Reverse all words of length '1' in the given sentence.
a room with a green rug and a daybed

Sentence: 'a black cat sitting on top of a laptop on a table'. Reverse all words of length '5' in the given sentence.
a kcalb cat sitting on top of a laptop on a elbat

Sentence: 'a couple of zebras stand next to each other'. Reverse all words of length '6' in the given sentence.

a elpuoc of sarbez stand next to each other