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

Input: Consider 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.

Output: weakener


Input: Consider Input: Hypothesis: When you're dating someone with kids, it's kind to plan dates that include them.
Update: You're still getting to know your lover's kids.

Output: strengthener


Input: Consider Input: Hypothesis: You shouldn't spank people.
Update: They are choking and spanking worked in the past to dislodge the food.


Output: weakener