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

[EX Q]: Hypothesis: It's wrong to make friends just to achieve something.
Update: The reason is trivial
[EX A]: strengthener

[EX Q]: Hypothesis: It is acceptable to raise the billing rate of a former employee.
Update: a former employee does a good job.
[EX A]: strengthener

[EX Q]: Hypothesis: If someone has damaged your property, you can require them to pay the cost.
Update: They invoke national security.
[EX A]:
weakener