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 young brown horse in a blue jacket running in a barn'. Reverse all words of length '4' in the given sentence.
[A]: a young brown horse in a eulb jacket running in a nrab


[Q]: Sentence: 'a crowd of people are walking around some tents in the street'. Reverse all words of length '6' in the given sentence.
[A]: a crowd of elpoep are walking dnuora some tents in the teerts


[Q]: Sentence: 'an old bed and shoes with a small placard'. Reverse all words of length '4' in the given sentence.
[A]:
an old bed and shoes htiw a small placard