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 skiers standing at the base of a mountain'. Reverse all words of length '3' in the given sentence.
[EX A]: a group of skiers standing at eht base of a mountain

[EX Q]: Sentence: 'a herd of horses is exercised in the yard led by a man on horseback'. Reverse all words of length '6' in the given sentence.
[EX A]: a herd of sesroh is exercised in the yard led by a man on horseback

[EX Q]: Sentence: 'a delicious plate of churro with chocolate sauce'. Reverse all words of length '9' in the given sentence.
[EX A]:
a suoiciled plate of churro with etalocohc sauce