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
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Question: Hypothesis: It is hurtful to drop a friend.
Update: That friend stabbed you in the back

Answer: weakener


Question: Hypothesis: You should be loyal to family.
Update: They betrayed you.

Answer: weakener


Question: Hypothesis: It's best to call the proper authorities when someone nearly runs you over.
Update: They speed away and nearly hit someone else.

Answer:
strengthener