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 man is standing on a sidewalk with his bike'. Reverse all words of length '3' in the given sentence.
[A]: a nam is standing on a sidewalk with sih bike


[Q]: Sentence: 'two giraffes standing next to a fence trying to reach the grass'. Reverse all words of length '6' in the given sentence.
[A]: two giraffes standing next to a fence gniyrt to reach the grass


[Q]: Sentence: 'a female nurse is standing next to a man in a bed'. Reverse all words of length '4' in the given sentence.
[A]:
a female nurse is standing txen to a man in a bed