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 group of people sitting on a wooden bench'. Reverse all words of length '1' in the given sentence.
[A]: a group of people sitting on a wooden bench


[Q]: Sentence: 'a griaffe eating from a tall basket at a zoo'. Reverse all words of length '2' in the given sentence.
[A]: a griaffe eating from a tall basket ta a zoo


[Q]: Sentence: 'two cats sitting on a desk behind a keyboard'. Reverse all words of length '7' in the given sentence.
[A]:
two cats gnittis on a desk behind a keyboard