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

Example Input: Hypothesis: It's okay to walk away from people if they have done something that hurts you.
Update: you have also done something to hurt them
Example Output: weakener

Example Input: Hypothesis: It is okay to expect both partners to contribute financially to a relationship.
Update: Both partners have income.
Example Output: strengthener

Example Input: Hypothesis: You shouldn't have to tip a cashier if they didn't bag your items.
Update: Especially if they didn't even offer to.
Example Output:
strengthener