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 shouldn't abandon your friends when they need you.
Update: they need you to do something illegal.
weakener

Hypothesis: It's ok to have a rebound relationship.
Update: You don't take it too seriously.
strengthener

Hypothesis: It's rude to treat a customer badly.
Update: the customer is polite and you are just having a bad day.

strengthener