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 good to give back to the community with food drives.
Update: At some point you yourself have used a food drive to feed your family.
Example Output: strengthener

Example Input: Hypothesis: You should be fair when tipping a server
Update: they ruined your dining experience.
Example Output:
weakener