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: Feeling threatened by a partner's social life is natural.
Update: You are not sure about their feelings for you

A: strengthener
****
Q: Hypothesis: It's good to volunteer.
Update: Unless you are only doing it to show off.

A: weakener
****
Q: Hypothesis: It's rude to expect peoples pets to be perfect when they are at a place they are suppose to have fun.
Update: They are in a dog park having fun.

A:
strengthener
****