TASK DEFINITION: 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
PROBLEM: Hypothesis: It is rude to expect one of your friends will always be your designated driver.
Update: Everyone is planning to drink.

SOLUTION: strengthener

PROBLEM: Hypothesis: It's rude to stop talking with acquaintances.
Update: They are using filthy language.

SOLUTION: weakener

PROBLEM: Hypothesis: You should do your best to help the planet.
Update: It will help future generations

SOLUTION:
strengthener