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.

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


[Q]: Sentence: 'many pairs of open scissors sit on top of metal poles'. Reverse all words of length '4' in the given sentence.
[A]: ynam pairs of nepo scissors sit on top of metal poles


[Q]: Sentence: 'a couple of people walking and carrying an umbrella'. Reverse all words of length '7' in the given sentence.
[A]:
a couple of people gniklaw and carrying an umbrella