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's hurtful not to receive a gift from a loved one on a special occasion.
Update: it is your birthday.

Output: strengthener


Input: Consider Input: Hypothesis: It is okay to be mad at another person.
Update: you are the person at fault.

Output: weakener


Input: Consider Input: Hypothesis: It is good to care for animals.
Update: You can see they have nobody to take care of them.


Output: strengthener