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 group of snow boarders pose in the snow on top of a hill'. Reverse all words of length '5' in the given sentence.
[EX A]: a puorg of snow boarders pose in the snow on top of a hill

[EX Q]: Sentence: 'a horse standing in front of a barn'. Reverse all words of length '1' in the given sentence.
[EX A]: a horse standing in front of a barn

[EX Q]: Sentence: 'a large bird stands on the ledge of a window'. Reverse all words of length '3' in the given sentence.
[EX A]:
a large bird stands on eht ledge of a window