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 child sits on a chair next to a bear'. Reverse all words of length '5' in the given sentence.
[A]: a dlihc sits on a riahc next to a bear


[Q]: Sentence: 'a man being towed behind a boat on a board'. Reverse all words of length '4' in the given sentence.
[A]: a man being towed behind a taob on a board


[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


