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 group of people para sailing on a beach'. Reverse all words of length '5' in the given sentence.
[A]: a puorg of people para sailing on a hcaeb


[Q]: Sentence: 'three people with backpacks on skies moving up a hill'. Reverse all words of length '9' in the given sentence.
[A]: three people with skcapkcab on skies moving up a hill


[Q]: Sentence: 'a cat ready to attack a dog on tv'. Reverse all words of length '3' in the given sentence.
[A]:
a tac ready to attack a god on tv