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? If you are still confused, see the following example:
Sentence: 'as a guy jumps over the snow with his snowboard people riding on the lift behind him look on'. Reverse all words of length '6' in the given sentence.
Solution: as a guy jumps over the snow with his snowboard elpoep gnidir on the lift dniheb him look on
Reason: Words 'people', 'riding', 'behind' are of length 6. Reversing these words results in 'elpoep', 'gnidir', and 'dniheb' respectively. So this is a correct answer.

Now, solve this instance: Sentence: 'four people sitting in a auditorium style class with open mac laptops'. Reverse all words of length '5' in the given sentence.
Student:
four people sitting in a auditorium elyts ssalc with open mac laptops