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: You should be kind to animals.
Update: The animal has become rabid and is about to attack.
weakener

Hypothesis: It's good to reduce the number of cars on the road by carpooling.
Update: You are going to the same place.
strengthener

Hypothesis: If you do not want a dog in the house, you should not get a dog.
Update: Your friend needs you to take care of their dog for a few weeks.

weakener