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: You should always trust your family.
Update: Your family has always taken good care of you.
strengthener

Hypothesis: Missing a friend's wedding is okay if they have done something very bad to you.
Update: That friend had cheated on you with your bride to be.

strengthener