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.

Input: Consider Input: Premise: A girl in an orange shirt lights candles.
Hypothesis: She is helping her mother light candles.
Update: The woman places platters of food on the dinner table next to the candles while the girl lights them.

Output: strengthener


Input: Consider Input: Premise: A police officer is monitoring a by stander while guarding a building.
Hypothesis: The police officer is a man.
Update: The officer looks stern.

Output: strengthener


Input: Consider Input: Premise: A man is carrying a child on his shoulders.
Hypothesis: The child is smiling.
Update: The child hums.


Output: strengthener