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.

[Q]: Premise: A black and brown dog is running out of the surf.
Hypothesis: A dog is swimming excitedly.
Update: The dog swims with great enthusiasm out of the water.
[A]: strengthener


[Q]: Premise: Three boys on a basketball court, wearing team uniforms, are attempting to reach a basketball which is not photographed but appears to be descending just out of their reach.
Hypothesis: there is a tie game
Update: The teams can't score on each other.
[A]: strengthener


[Q]: Premise: Customers stand in front of and talk with representatives sitting at desks with computers.
Hypothesis: The people are signing up for a new mobile plan
Update: The customers are all mad at their current phone companies.
[A]:
strengthener