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 baby sleeping with a green Binky in its mouth.
Hypothesis: A baby is in a crib.
Update: The baby monitor blinks on the nearby dresser in the nursery.

Ex Output:
strengthener


Ex Input:
Premise: There are a lot of kids walking on train tracks surrounded by trees.
Hypothesis: THE grass was green
Update: The yellow grass was a result of the drought that had hit the area.

Ex Output:
weakener


Ex Input:
Premise: A young girl with water wings leaps into a crowded pool
Hypothesis: The girl is jumping to her father in the pool.
Update: There is a man with his arms up facing the girl.

Ex Output:

strengthener