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: '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: 'the couple are smiling at each other as they sit on a bench'. Reverse all words of length '4' in the given sentence.
[A]: the couple are smiling at hcae other as yeht sit on a bench


[Q]: Sentence: 'a snowy mountain seen from inside a light aircraft'. Reverse all words of length '8' in the given sentence.
[A]:
a snowy niatnuom seen from inside a light tfarcria