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: man in yellow shirt with USA on it sits on chair next to door
Hypothesis: A man near the door is waiting for a friend.
Update: The man is watching the door for hoodlums.

Ex Output:
weakener


Ex Input:
Premise: A blond woman in a green tank top rides her bicycle in front of an apartment building.
Hypothesis: The blonde woman rides back and forth in front of the apartment building hoping to see her boyfriend.
Update: The woman hopes the bouncing of her breasts in the tight green shirt will get her boyfriend to notice her.

Ex Output:
strengthener


Ex Input:
Premise: A man playing a saxaphone.
Hypothesis: A man plays an instrument in a band.
Update: The man plays some bad notes

Ex Output:

weakener