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: You should be kind to animals.
Update: The animal has become rabid and is about to attack.
Example Output: weakener

Example Input: Hypothesis: Try doing some light exercise to reduce period pain before resorting to painkillers.
Update: You are in too much pain to work out.
Example Output: weakener

Example Input: Hypothesis: It's ok to date someone casually.
Update: You are an adult and both parties are aware it is just casual.
Example Output:
strengthener