Given the task definition, example input & output, solve the new input case.
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: Hypothesis: You should help your family with funeral expenses.
Update: They have asked you to chip in
Output: strengthener
If your family has asked you to chip in for the funeral expenses, you should help them.

New input case for you: Hypothesis: It's not right to give someone the slip without telling them why.
Update: they likely know without you having to tell them.
Output:
weakener