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 large eared dog sitting on an office chair'. Reverse all words of length '3' in the given sentence.
[A]: a large eared god sitting on an office chair


[Q]: Sentence: 'two people are holding rackets upright on a tennis court'. Reverse all words of length '7' in the given sentence.
[A]: two people are gnidloh stekcar thgirpu on a tennis court


[Q]: Sentence: 'a large flock of birds fly through the sky'. Reverse all words of length '3' in the given sentence.
[A]:
a large flock of birds ylf through eht yks