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'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.
weakener

Hypothesis: It's good to part ways with a romantic partner on friendly terms.
Update: You have children together and will have to co-parent.
strengthener

Hypothesis: It is nice to offer to get tea for your coworker sometimes.
Update: They have gotten tea for you in the past.

strengthener