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 is wrong not to help a friend in need.
Update: You don't know where your friend is.
Example Output: weakener

Example Input: Hypothesis: It is ok to not leave a tip if your hairdresser did a very bad job or cut you with the clippers.
Update: they are a friend.
Example Output: weakener

Example Input: Hypothesis: Friends are expected to be honest with each other.
Update: they have made a pact to never lie.
Example Output:
strengthener