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 fine to accept something that is offered for free.
Update: you were going to buy it.
strengthener

Hypothesis: It's expected of siblings to comfort each other in hard times.
Update: Your siblings were adopted by other people
weakener

Hypothesis: It's okay to butt heads with your parents.
Update: You are discussing a topic in which there is only one correct side.

weakener