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: Parents are expected to share the duty of raising their children.
Update: Both parents work equal hours at their jobs.
strengthener

Hypothesis: It is not good to assume only one is wrong.
Update: you do not have all of the facts.
strengthener

Hypothesis: It's wrong to ignore your friends and keep them out of events.
Update: You know they're bored and sitting at home.

strengthener