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 wearing skis and standing at the top of a ski slope'. Reverse all words of length '7' in the given sentence.
[A]: a group of people gniraew skis and standing at the top of a ski slope


[Q]: Sentence: 'small blue and red bird standing on rear of zebra'. Reverse all words of length '8' in the given sentence.
[A]: small blue and red bird gnidnats on rear of zebra


[Q]: Sentence: 'a grilled cheese sandwich and potato chips on a plate'. Reverse all words of length '2' in the given sentence.
[A]:
a grilled cheese sandwich and potato chips no a plate