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 understandable if you accidentally lose sight of your pet.
Update: your pet is a dangerous dog who tries to bite people.
weakener

Hypothesis: You should let your children plan their own wedding.
Update: Your children are covering the financial costs.
strengthener

Hypothesis: It's good to be distrustful of strangers who ask private questions.
Update: The stranger is a policeman

weakener