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

Q: Hypothesis: Friends should be concerned for each other's well being.
Update: They're mentally unstable and you question their motives.

A: weakener
****
Q: Hypothesis: It's rude to criticize a gift that you have been given.
Update: it is a birthday gift

A: strengthener
****
Q: Hypothesis: You shouldn't make unreasonable demands of your care giver.
Update: They don't have time for your demands.

A:
strengthener
****