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: Two girls in red and blowing bubbles with gum.
Hypothesis: One child has challenged another to blow the biggest bubble.
Update: The girls are carefully controlling their breathing to make the bubbles bigger.

Ex Output:
strengthener


Ex Input:
Premise: A young red-haired woman uses a scope to scout out shooting targets on a gun range.
Hypothesis: The woman is shooting with other people at the range
Update: The woman is surrounded by other people with guns

Ex Output:
strengthener


Ex Input:
Premise: The girl with the blue bucket splashes beneath the pier.
Hypothesis: A girl has sand in her bucket.
Update: The girl has been trying to build a sand castle.

Ex Output:

strengthener