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 swimmers competing in swim competition.
Hypothesis: The swim competition is held inside
Update: The swimmers swim under some bright lights on the ceiling.

Ex Output:
strengthener


Ex Input:
Premise: A woman in a white shirt is wearing blue goggles while speaking to someone with her hands.
Hypothesis: A woman wearing goggles is yelling and waving her hands at someone.
Update: There is a drowned person in the pool and the woman is waving for people to get back.

Ex Output:
strengthener


Ex Input:
Premise: A guy is talking to his friend taking a picture of a girl taking shots.
Hypothesis: The girl is drunk.
Update: The girl can't walk straight.

Ex Output:

strengthener