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

Hypothesis: It's good to give back to the community with food drives.
Update: At some point you yourself have used a food drive to feed your family.
strengthener

Hypothesis: It's rude to purposefully humiliate someone in a social setting
Update: You have the backing of others at the social event.
weakener

Hypothesis: It is okay to hold people accountable for harm they have caused
Update: it was an accident

weakener