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 street pole with some signs sitting on top of it'. Reverse all words of length '6' in the given sentence.
[A]: a teerts pole with some signs sitting on top of it


[Q]: Sentence: 'a bird looks around as it sits on a wire'. Reverse all words of length '4' in the given sentence.
[A]: a drib looks around as it stis on a eriw


[Q]: Sentence: 'a passenger train that is pulling into a station'. Reverse all words of length '2' in the given sentence.
[A]:
a passenger train that si pulling into a station