"But the bag is transparent" is not "irrelevant word permutation" and neither is the additive question that spurs the correct resolution. And it certainly isn't random.
a human that isn't paying attention could fail the question too which is kind of the point i'm making.
The whole point is that irrelevant word permutation should not "turn on" or "turn off" this capacity.
That you can "prompt engineer" your way to the answer shows that the prompt engineer knows the answer and can "use the right search terms" to find it.