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: Getting upset is normal and common.
Update: There's no valid reason to be upset.

Output: weakener


Input: Consider Input: Hypothesis: It is rude to be selfish
Update: there is not enough for everyone.

Output: strengthener


Input: Consider Input: Hypothesis: It's good to be polite to other drivers.
Update: You are surrounded by cops.


Output: strengthener