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 man on skis is under an empty ski lift'. Reverse all words of length '1' in the given sentence.
[A]: a man on skis is under an empty ski lift


[Q]: Sentence: 'a person parasails in water with mountains in the background'. Reverse all words of length '4' in the given sentence.
[A]: a person parasails in water htiw mountains in the background


[Q]: Sentence: 'a panda bear sitting up in a tree next to green leaves'. Reverse all words of length '7' in the given sentence.
[A]:
a panda bear gnittis up in a tree next to green leaves