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: A little boy dressed in shorts lies on a rock.
Hypothesis: The little boy is sitting in the sun
Update: It is night time.

Ex Output:
weakener


Ex Input:
Premise: A woman serving a tennis ball.
Hypothesis: A woman is playing tennis with her husband.
Update: She has a basket of balls to practice with alone.

Ex Output:
weakener


Ex Input:
Premise: A man in the military is walking with his two daughters.
Hypothesis: He is wearing a military jacket.
Update: The many just came back from deployment.

Ex Output:

strengthener