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.

[EX Q]: Sentence: 'a snowy hill with a tree lined area'. Reverse all words of length '4' in the given sentence.
[EX A]: a snowy llih htiw a eert lined aera

[EX Q]: Sentence: 'a group of five people in white snow outfits cross country skiing'. Reverse all words of length '5' in the given sentence.
[EX A]: a puorg of five people in etihw snow outfits ssorc country skiing

[EX Q]: Sentence: 'a fork is laying on a red plate'. Reverse all words of length '2' in the given sentence.
[EX A]:
a fork si laying no a red plate