In this task, you are given a hypothesis and an update. The hypothesis sentence is a statement that speaks of a socially normative behavior. In other words, it is a generalizing statement about how we expect people to behave in society. The update provides additional contexts about the situation that might UNDERMINE or SUPPORT the generalization. An undermining context provides a situation that weakens the hypothesis. A supporting context provides a situation that strengthens the generalization. Your task is to output 'strengthener' or 'weakener' if the update supports or undermines the hypothesis, respectively

Input: Consider Input: Hypothesis: If your sister deserves it, you don't have to be kind to her.
Update: She ruined your favorite shirt on purpose.

Output: strengthener


Input: Consider Input: Hypothesis: It's kind to be gentle when handling break ups and choose the right time.
Update: Your partner is very abusive.

Output: weakener


Input: Consider Input: Hypothesis: It's okay to be hurt if someone breaks up with you for someone much younger.
Update: You have been married to them for 20 years.


Output: strengthener