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: It's okay to kiss someone after a date.
Update: they've made it clear that they want to go slowly
Example Output: strengthener

Example Input: Hypothesis: It's wrong not to pay for something that you have agreed to pay.
Update: You were happy with the purchased item.
Example Output: strengthener

Example Input: Hypothesis: It is understandable if you do not like using the same cookbook that your mother uses.
Update: You have a cookbook of your own that you prefer.
Example Output:
strengthener