Thanks for the question! So put K in fourth and see what happens. Well, we know that we need to fill slots 5-8, and we know that four things must go after K: HOL, and I. So those four all have to go after K. Otherwise, can N be third? Yes, it can. For example:
P G N K I H O L
But can G be fifth? No, it can’t. Remember, we said that the four things after K have to be HOL and I. So that means G has to go before K, and thus before the fourth slot. So that means that G can be at latest third, and so it certainly can’t be fifth.
Hope this helps! Feel free to ask any other questions that you might have.
