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

Ex Input:
Hypothesis: It is OK to ask your housemate's guest to bring the spare keys back home after he locked your guest outside.
Update: The guest has no jacket on and it is freezing.

Ex Output:
strengthener


Ex Input:
Hypothesis: You are expected to replace items that you broke.
Update: You are told it isn't necessary to replace the item.

Ex Output:
weakener


Ex Input:
Hypothesis: Family is expected to keep in contact.
Update: Unless they are victims of domestic violence.

Ex Output:

weakener