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's rude to stop talking with acquaintances.
Update: They are using filthy language.

Output: weakener


Input: Consider Input: Hypothesis: It's wrong not to pay for something that you have agreed to pay.
Update: You were happy with the purchased item.

Output: strengthener


Input: Consider Input: Hypothesis: It's not desirable to get angry when people have a change of plans just because it affects you.
Update: Especially if it was unavoidable.


Output: strengthener