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

Example Input: Hypothesis: It is impolite to take someone's food without asking first.
Update: They have helped themselves to their own portion.
Example Output: strengthener

Example Input: Hypothesis: People are expected to appreciate gifts.
Update: The gifts are gag gifts.
Example Output: weakener

Example Input: Hypothesis: It's not okay to stop speaking with someone Platonicly just because they have a relationship with someone.
Update: You have known the friend for decades.
Example Output:
strengthener