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 good to diffuse a tense situation.
Update: There is a chance it could escalate to violence.
[EX A]: strengthener

[EX Q]: Hypothesis: It's OK that not everyone is excited about making plans on their birthday.
Update: They have been talking about a party for a long time.
[EX A]: weakener

[EX Q]: Hypothesis: You should be polite to people who wish you seasons greetings, even if you don't celebrate it yourself.
Update: The person is a door greeter.
[EX A]:
strengthener