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 Q]: Sentence: 'a couple of women sitting on a bench with a dog'. Reverse all words of length '4' in the given sentence.
[EX A]: a couple of women sitting on a bench htiw a dog

[EX Q]: Sentence: 'reflection of window on mirror in dark bathroom'. Reverse all words of length '10' in the given sentence.
[EX A]: noitcelfer of window on mirror in dark bathroom

[EX Q]: Sentence: 'a women who is laying on a bench'. Reverse all words of length '3' in the given sentence.
[EX A]:
a women ohw is laying on a bench