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 be loyal to family.
Update: They betrayed you.

Output: weakener


Input: Consider Input: Hypothesis: It's wrong not to get your children haircuts.
Update: they feel socially awkward with long hair

Output: strengthener


Input: Consider Input: Hypothesis: Libraries are right to impose restrictions on what behaviors are acceptable inside them.
Update: Those rules are necessary to keep everyone safe.


Output: strengthener