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 city truck two city buses and a yellow fire hydrant'. Reverse all words of length '4' in the given sentence.
[A]: a ytic truck two ytic buses and a yellow erif hydrant


[Q]: Sentence: 'a computer and laptop sitting on a desk'. Reverse all words of length '6' in the given sentence.
[A]: a computer and potpal sitting on a desk


[Q]: Sentence: 'a cat looking at itself in the mirror while in the bathroom'. Reverse all words of length '7' in the given sentence.
[A]:
a cat gnikool at itself in the mirror while in the bathroom