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 is wrong to spy on people.
Update: There's strong evidence that the people you're spying on are violent terrorists.
weakener

Hypothesis: It's wrong to make friends just to achieve something.
Update: The reason is trivial
strengthener

Hypothesis: It's good to have your friends' backs.
Update: You know they will call in a favor that makes you uncomfortable.

weakener