In this task, you are given a premise, a hypothesis, and an update. The premise sentence describes a real-world situation and is always assumed to be true. The hypothesis sentence describes an assumption or inference that you might make about that situation having read the premise. The update provides additional information about the situation that might weaken or strengthen the hypothesis. A weakener is a statement that weakens the hypothesis, that is, it makes you much less likely to believe the hypothesis is true. A strengthener is a statement that strengthens the hypothesis, that is, it makes you much more likely to believe the hypothesis is true. Your task is to answer with 'strengthener' or 'weakener' if the update strengthens or weakens the hypothesis, respectively.

Input: Consider Input: Premise: Two parents sit on a couch while a girl in a pink sweater lounges across them.
Hypothesis: The two parents are married.
Update: The parents' children have different last names.

Output: weakener


Input: Consider Input: Premise: A boy standing next to a small field fire and a boy running away from it.
Hypothesis: The boy is running from the field fire to get help.
Update: The is waving his hands and yelling.

Output: strengthener


Input: Consider Input: Premise: A man in green is holding a hose that is connected to an airplane.
Hypothesis: A man in green standing in the rain.
Update: The man wipes sweat from the hot sun off his brow


Output: weakener