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 ok to not leave a tip if your hairdresser did a very bad job or cut you with the clippers.
Update: they are a friend.

Answer: weakener


Question: Hypothesis: It's wrong to not eat food you've bought.
Update: the food is spoiled

Answer: weakener


Question: Hypothesis: It's fine to want to avoid a dangerous situation
Update: You have a serious heart condition.

Answer:
strengthener