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

Hypothesis: It's okay to end a friendship if your friend does something you disapprove of highly.
Update: What they did harmed a lot of people.
strengthener

Hypothesis: It is difficult to decide between two fun options.
Update: one of them is illegal and the other isn't
weakener

Hypothesis: Being selfish with family can damage even the strongest relationships.
Update: Your brother thinks you spend way too much time with family members that are toxic

strengthener