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 panda bear walking around in the middle of a enclosure'. Reverse all words of length '6' in the given sentence.
[A]: a panda bear walking dnuora in the elddim of a enclosure


[Q]: Sentence: 'a keyboard a mouse a monitor and a brown table'. Reverse all words of length '3' in the given sentence.
[A]: a keyboard a mouse a monitor dna a brown table


[Q]: Sentence: 'a flock of black pigeons sitting on a buildings ledge'. Reverse all words of length '9' in the given sentence.
[A]:
a flock of black pigeons sitting on a sgnidliub ledge