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

Input: Consider Input: Hypothesis: You should always wish your roommates good luck.
Update: They have been supportive of you.

Output: strengthener


Input: Consider Input: Hypothesis: It's understandable to not want a pet.
Update: Unless you're just an evil person.

Output: weakener


Input: Consider Input: Hypothesis: You should maintain your friendships.
Update: You've been friends since childhood.


Output: strengthener