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 crowd of people skiing and enjoying the snow'. Reverse all words of length '4' in the given sentence.
[EX A]: a crowd of people skiing and enjoying the wons

[EX Q]: Sentence: 'read clocktower on the side of a water body'. Reverse all words of length '3' in the given sentence.
[EX A]: read clocktower on eht side of a water body

[EX Q]: Sentence: 'two elephants wander away from their watering hole'. Reverse all words of length '3' in the given sentence.
[EX A]:
owt elephants wander away from their watering hole