In this task, you are given a premise, a hypothesis, and an update. The premise sentence describes a real-world situation and is always assumed to be true. The hypothesis sentence describes an assumption or inference that you might make about that situation having read the premise. The update provides additional information about the situation that might weaken or strengthen the hypothesis. A weakener is a statement that weakens the hypothesis, that is, it makes you much less likely to believe the hypothesis is true. A strengthener is a statement that strengthens the hypothesis, that is, it makes you much more likely to believe the hypothesis is true. Your task is to answer with 'strengthener' or 'weakener' if the update strengthens or weakens the hypothesis, respectively.

Ex Input:
Premise: Three people are canoeing down a rough body of water.
Hypothesis: The people are in canoes where they shouldn't be.
Update: The people in the canoes are following the mapped plan.

Ex Output:
weakener


Ex Input:
Premise: The man is driving his equipment under the archway.
Hypothesis: The sad man is driving his equipment under the archway.
Update: The man just got a promotion at work.

Ex Output:
weakener


Ex Input:
Premise: A little girl in a white sweater and hat smiles beside an outdoor fireplace.
Hypothesis: A girl is happy.
Update: The girl is humming a song

Ex Output:

strengthener