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: It's ok to grow apart from an old friend.
Update: They betray your trust.

A: strengthener
****
Q: Hypothesis: Try doing some light exercise to reduce period pain before resorting to painkillers.
Update: You are in too much pain to work out.

A: weakener
****
Q: Hypothesis: Parents are expected to share the duty of raising their children.
Update: One parent falls seriously ill.

A:
weakener
****