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 blue sign sitting on the side of a road next to a tree'. Reverse all words of length '1' in the given sentence.
[A]: a blue sign sitting on the side of a road next to a tree


[Q]: Sentence: 'a group of boys surfing in water'. Reverse all words of length '4' in the given sentence.
[A]: a group of syob surfing in water


[Q]: Sentence: 'a large crowd of people are gathered around two airplanes'. Reverse all words of length '3' in the given sentence.
[A]:
a large crowd of people era gathered around owt airplanes