Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Sentence: 'a cat taking a nap upon a laptop computer on a desk'. Reverse all words of length '3' in the given sentence.
Student:
a tac taking a pan upon a laptop computer on a desk