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: It shows character to step up to an unforeseen challenge.
Update: The challenge is impossible and a losing proposition.

Output: weakener


Input: Consider Input: Hypothesis: You should always give your best effort.
Update: You are part of a passive protest.

Output: weakener


Input: Consider Input: Hypothesis: It is not OK to be mad at a friend for getting sick.
Update: they are serious ill.


Output: strengthener