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 herd of zebra standing in a forest'. Reverse all words of length '1' in the given sentence.
[A]: a herd of zebra standing in a forest


[Q]: Sentence: 'a bunch of umbrellas are up in the air'. Reverse all words of length '9' in the given sentence.
[A]: a bunch of sallerbmu are up in the air


[Q]: Sentence: 'this is a hipster with a fedora and a bicycle posing for the camera'. Reverse all words of length '3' in the given sentence.
[A]:
this is a hipster with a fedora dna a bicycle posing rof eht camera