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 expected that people will not shave someones head without permission.
Update: That person is unemployed.

SOLUTION: strengthener

PROBLEM: Hypothesis: It is right to contact the authorities if someone is breaking the law.
Update: Someone is getting hurt.

SOLUTION: strengthener

PROBLEM: Hypothesis: It's wrong to let animals into areas where they shouldn't be.
Update: It is an establishment that serves food.

SOLUTION:
strengthener