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

Example Input: Hypothesis: Parents are expected to share the duty of raising their children.
Update: Both parents work equal hours at their jobs.
Example Output: strengthener

Example Input: Hypothesis: It's your choice about who to be friends with.
Update: The person you want to be friends with doesn't like you.
Example Output: weakener

Example Input: Hypothesis: Spending a lot of money on a gift for someone doesn't mean they'll like it.
Update: The receiver of the gift has asked you to make them a gift instead of spending money.
Example Output:
strengthener